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Proton NMR Spectroscopy - How To Draw The Structure Given The Spectrum
 
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This organic chemistry video tutorial provides a basic introduction into proton NMR spectroscopy. It explains how to draw the chemical structure of a molecule given its H-NMR spectrum and the molecular formula of the compound. This video explains how to do it using concepts such as chemical shift, number of signals, spin spin splitting, integration, drawing constitutional isomers, and using IHD - index of hydrogen deficiency. This video contains plenty of examples and practice problems.
Given the NMR Spectrum, Draw the Structure of this Molecule
 
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Check me out: http://www.chemistnate.com
Views: 50863 chemistNATE
Proton NMR practice 1 | Spectroscopy | Organic chemistry | Khan Academy
 
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Practice determining the structure of a molecule from the molecular formula, hydrogen deficiency index, and proton NMR spectrum. Uses example of ethylbenzene. Created by Jay. Watch the next lesson: https://www.khanacademy.org/science/organic-chemistry/spectroscopy-jay/proton-nmr/v/proton-nmr-practice-2?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Missed the previous lesson? https://www.khanacademy.org/science/organic-chemistry/spectroscopy-jay/proton-nmr/v/hydrogen-deficiency-index?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Organic Chemistry channel: https://www.youtube.com/channel/UCNKPjijOc0WEJ7DIV_Vay3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
How To Determine The Number of Signals In a H NMR Spectrum
 
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This organic chemistry video tutorial explains how to determine the number of signals in a H NMR spectrum as well as a C NMR spectrum using symmetry and the principles of chemical equivalence in NMR spectroscopy.
Practice Problem: Assigning Molecular Structure From an NMR Spectrum
 
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For this one we need to be able to interpret NMR data in order to arrive at the correct molecular structure based on an empirical formula. It's not as hard as it sounds! Subscribe: http://bit.ly/ProfDaveSubscribe [email protected] http://patreon.com/ProfessorDaveExplains http://professordaveexplains.com http://facebook.com/ProfessorDaveExpl... http://twitter.com/DaveExplains General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths Biology Tutorials: http://bit.ly/ProfDaveBio American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Organic Chemistry II - Solving a Structure Based on IR and NMR Spectra
 
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In this video I determine a plausible chemical structure for an organic compound based on the given IR and H NMR spectra. For a copy of the tables I used, click here: https://drive.google.com/open?id=0BwOceMKQTVFxRTh1Szl4aTh0eE0
Views: 197376 Tony St. John
Proton NMR - How To Analyze The Peaks Of H-NMR Spectroscopy
 
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http://leah4sci.com/organicchemistry Presents: H-NMR How To Analyze Peaks Are you struggling with organic chemistry? Download my free ebook "10 Secrets To Acing Organic Chemistry" here: http://leah4sci.com/orgo-ebook/ This video takes you through the four key aspects you need to understand when interpreting the peaks of an H-NMR graph - Number and type of unique hydrogen - splitting of peaks - hydrogen neighbors - chemical shifts Future videos will take you through specific NMR problems and solving techniques View them here: http://leah4sci.com/organic-chemistry-video-and-quiz-library/ I also offer 1-1 online organic chemistry tutoring. More information here: http://leah4sci.com/organic-chemistry-tutor/
Views: 730497 Leah4sci
NMR Made Easy! Part 6A - NMR to Molecule Structure - Organic Chemistry
 
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Hey guys guess what?!?! My 8 months late videos are finally up! NMRs Part 6A and 6B are perfect in case any of you are still having any problems with NMRs or know someone who is. In this video I go over Degrees of Unsaturation, Integration, my Awesome Table that organizes the NMRs information and we put it altogether to get the structure of our mysterious molecule. Hope you guys like it ;) ●Become a Patron + Free Tutoring Lottery! http://www.Patreon.com/OrgoMadeEasy ●Private Tutoring Information: I offer in-person private tutoring in Boston and NYC, and if you live elsewhere on this awesome planet I offer online Skype tutoring that is accompanied with a whiteboard program. For more info check here: http://orgomadeeasy.org/private-tutoring/ and contact me via my "Orgo Made Easy" Facebook page or email: [email protected] ●NMR 1/6 Electronegativity and Shielding(NMRs) http://www.youtube.com/watch?v=9orcRVTKcS0 ●NMR 2/6 Equivalent Hydrogens- http://www.youtube.com/watch?v=NZ7KCwFRzp8 ●NMR 2.5/6 Equivalent Hs Part II http://www.youtube.com/watch?v=9B7w8dK7yiI ●NMR 3/6 What NMRs Tell Us- http://youtu.be/wi-evRDwDGQ ●NMR 4/6 Molecules to NMR- http://www.youtube.com/watch?v=uB5emmz9Kn4 ●NMR 5/6 Complex Splitting- http://www.youtube.com/watch?v=1IKHQwU1Evs ●NMR 6A/6 NMR to Molecules- https://www.youtube.com/watch?v=5Uy7GiRaV2A ●NMR 6B/6 NMR to Molecules- https://www.youtube.com/watch?v=yJ6ChsVZTmE Make sure you share this with your friends if you found it helpful, and I would love it if you leave some comments to let me know if I'm on the right track ;). Subscribe to get updated when I make new videos! https://www.youtube.com/user/OrgoMadeEasy Connect with me on Facebook/Instagram/Twitter! Official Website-----------------------http://OrgoMadeEasy.org/ Facebook-------------------------------https://Facebook.com/OrgoMadeEasy Instagram-------------------------------http://Instagram.com/FrankMWong Tweet Tweet---------------------------https://Twitter.com/OrgoMadeEasy Help Support Me Here--------------http://www.Patreon.com/OrgoMadeEasy
Views: 238118 Frank Wong
Draw the NMR Spectrum of ethanol
 
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How to predict and draw the hydrogen (1H) NMR spectrum of an alcohol (ethanol). Find the equivalent hydrogens, determine the peak splitting and then draw each set of peaks at the appropriate chemical shift. Check me out: http://www.chemistnate.com
Views: 94513 chemistNATE
Determine Molecular Structure from Proton NMR Spectrum (Example 3)
 
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DO NOT FORGET TO SUBSCRIBE! This video is a continuation of parts 1 and 2. You can view them here. Part 1: https://www.youtube.com/watch?v=CTIDnngoG8w&t=6s Part 2: https://www.youtube.com/watch?v=DE3i-IYAbBg
Views: 72 Kevan Science
H NMR Spectroscopy Review - Examples & Multiple Choice Practice Problems
 
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This organic chemistry video provides a review of H NMR spectroscopy. It provides plenty of examples and multiple choice practice problems that you might encounter on your next test or exam. It discusses chemical shifts for common functional groups such as aldehydes, carboxylic acids, ethers, alkyl halides, and aromatic benzene rings. It provides a review of the H NMR signals and the spin spin splitting pattern of the n+1 rule that you need to know. It also shows you how to determine the number of signals in an h nmr spectrum and discusses the terms upfield and downfield so you can understand it. Here is a list of topics: 1. Common Chemical Shifts / H NMR Table Values 2. How To Find The Number of Signals 3. N + 1 rule - Spin Spin Splitting 4. How To Identify Identical Hydrogen Atoms 5. How To Draw a HMR Signals /Spectrum 6. Upfield vs Downfield 7. H-NMR Analysis and Integration
How2: Interpret a proton NMR spectrum
 
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Shows a method for getting all the useful information out of a proton NMR spectrum and using it to piece together the identity of an unknown molecule
Views: 103085 Andrew Crookell
Proton NMR Spectrum Example
 
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Donate here: http://www.aklectures.com/donate.php Website video link: http://www.aklectures.com/lecture/proton-nmr-spectrum-example Facebook link: https://www.facebook.com/aklectures Website link: http://www.aklectures.com
Views: 15039 AK LECTURES
Spin Spin Splitting - N+1 Rule - Multiplicity - Proton NMR Spectroscopy
 
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This organic chemistry video tutorial provides a basic introduction into spin spin splitting / coupling as it relates to proton NMR spectroscopy. It explains how to use the N+1 rule to determine the multiplicity of a H NMR signal. It also discusses the intensity ratio of singlets, doublets, triplets, quartets, quintets, sextets, and septets using pascal's triangle. It also provides an intro into complex splitting by using a triplet of quartets and a quartet of triplets signal as an example which can be simply referred to as a multiplet.
Assigning a 1H NMR spectrum
 
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In this screencast, Andrew Parsons walks you through the process of assigning a 1H NMR spectrum. http://ukcatalogue.oup.com/product/9780199277896.do
TRICK TO SOLVE NMR PROBLEM IN JUST MINUTE| COMPLETE SOLUTION-Revised edition in hindi.
 
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NMR PROBLEM SOLUTION-Revised edition in hindi. Sayyed Academy-learn Chemistry in new way. This video contain NMR PROBLEM SOLUTION in tricky way must watch entire video definitely you will be able solve HNMR problems within two minutes.Join Sayyed Academy for all latest update and explore chemistry in easy way. -~-~~-~~~-~~-~- Please watch: "NMR SPECTROSCOPY-THEORY/FROM BASICS (PART-1) IN HINDI/URDU" https://www.youtube.com/watch?v=kDaso5CPc3I -~-~~-~~~-~~-~-
Views: 83390 Ali's Chemistry
More Practice With H-NMR Spectra
 
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Let's take another look at some H-NMR spectra to get a little more practice. What do we do with protons on an alkene? How do we predict a spectrum from a structure? How do we predict a structure from a spectrum? Practice makes perfect! Want to play around with ChemDoodle? Get a copy here: https://www.chemdoodle.com/ Subscribe: http://bit.ly/ProfDaveSubscribe [email protected] http://patreon.com/ProfessorDaveExplains http://professordaveexplains.com http://facebook.com/ProfessorDaveExpl... http://twitter.com/DaveExplains General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Proton NMR Skills (Benzene Derivatives) - Part 1
 
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In this video series I'll teach the techniques I use to interpret NMR spectra. If you watch the complete series, you'll have all the skills you need to interpret just about any NMR spectrum. In this video you'll learn how to handle disubstituted benzenes, aldehydes, ethers, and various other functional groups. If this video is too advanced for you, you may be missing some basic NMR theory. Check out this video series from my friend Frank Wong: https://www.youtube.com/watch?v=9orcRVTKcS0 Other Links! Proton NMR chemical shifts: http://andromeda.rutgers.edu/~huskey/images/nmr_h_table.png Proton NMR of benzaldehyde: http://www.ces.clemson.edu/IMMEX/backup/asif/Spectra/Case1/example_spectra/ex_bd_hnmr.htm Proton NMR of p-methoxybenzaldehyde: http://www.azom.com/images/Article_Images/ImageForArticle_11354(2).jpg
Views: 86797 Janci Despain
NMR Spectroscopy- Structure Determination of Organic Compound using NMR data
 
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Link for spectral data table: http://www.chemohollic.com/2018/05/important-spectroscopic-data-tables-ir.html In this video we will learn, how to determine structure of an organic compound using NMR data. Espectroscopía de RMN NMR spektroskopija NMR zowonetserako zojambulajambula NMR spektroskopií NMR-spectroscopie Spectroscopie RMN NMR φασματοσκοπία Spektroskopi NMR NMR分光法 ЯМР спектроскопияга NMR स्पेक्ट्रोस्कोपी Espectroscopia de RMN НМР спектроскопија NMR-spektroskopi -phổ phổ NMR
Views: 31926 All 'Bout Chemistry
Determining organic structures from IR/NMR
 
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In this video I use the molecular formula, IR spectrum, and NMR spectrum to determine the organic structure
Views: 153684 Jeremy McCallum
11.3 1H NMR - how to determine number of peaks *updated* (SL)
 
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In this video, I take a look at how to determine the number of peaks on a 1H NMR spectrum of an organic compound by looking at its structure formula. Note that I do not cover splitting of the peaks in this video as this covered in the HL part of the syllabus.
Views: 11771 Mike Sugiyama Jones
Draw the NMR Spectrum of pentan-2-one
 
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How to predict and draw the hydrogen (1H) NMR spectrum of a ketone (pentan-2-one). Find the equivalent hydrogens, determine the peak splitting and then draw each set of peaks at the appropriate chemical shift. Check me out: http://www.chemistnate.com
Views: 35063 chemistNATE
Proton NMR practice 3 | Spectroscopy | Organic chemistry | Khan Academy
 
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More practice determining the structure of a molecule from the molecular formula, hydrogen deficiency index, and proton NMR spectrum. Uses example of ethanol. Created by Jay. Missed the previous lesson? https://www.khanacademy.org/science/organic-chemistry/spectroscopy-jay/proton-nmr/v/proton-nmr-practice-2?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Organic Chemistry channel: https://www.youtube.com/channel/UCNKPjijOc0WEJ7DIV_Vay3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Solving an Unknown Organic Structure using NMR, IR, and MS
 
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In this lesson we learn the steps of solving for an unknown compound when presented with several spectra including mass spectroscopy, IR, proton NMR, and carbon 13 NMR. Support the Channel! Buy The Complete Solving Unknown Spectroscopy Guide Here: https://www.chemcomplete.com/buy-guides Visit us Online: https://www.chemcomplete.com/ Private 1 on 1 Coaching Available, Custom Video Lessons! Learn with us online! https://www.udemy.com/user/matthew-tomney Follow us on social media: https://twitter.com/ChemComplete https://www.facebook.com/chemcomplete
Views: 23483 ChemComplete
Integration of H NMR Signals - Spectroscopy - Organic Chemistry
 
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This organic chemistry video discusses the integration of H-NMR signals in NMR spectroscopy. It relates the area under the curve with the height of the integral trace to the relative number of protons in the molecule.
11.08 Structure Determination from Proton NMR
 
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The proton NMR correlation chart revisited. Ring current effects. Using infrared and proton NMR spectra to determine a structure.
Views: 845 Michael Evans
1H NMR Chemical Shifts
 
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Watch more of this topic at ► http://bit.ly/28IHARZ Download this PDF: http://bit.ly/28KzNki GET MORE CLUTCH! VISIT our website for more of the help you need: http://bit.ly/28JvAhY SUBSCRIBE for new videos: http://cltch.us/1axA33X --- LET'S CONNECT! Facebook: http://cltch.us/1JLgiSZ Twitter: http://cltch.us/1NLcKpu Instagram: http://cltch.us/1If5pb7 Google+: http://cltch.us/1E34o85 Clutch Prep = Textbook specific videos to help you pass your toughest science classes.
Views: 25879 Clutch Prep
Chemical equivalence | Spectroscopy | Organic chemistry | Khan Academy
 
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How to predict the number of signals in a proton NMR spectrum based on the number of non-equivalent hydrogens in a compound. Created by Jay. Watch the next lesson: https://www.khanacademy.org/science/organic-chemistry/spectroscopy-jay/proton-nmr/v/chemical-shift?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Missed the previous lesson? https://www.khanacademy.org/science/organic-chemistry/spectroscopy-jay/proton-nmr/v/nuclear-shielding?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Organic Chemistry channel: https://www.youtube.com/channel/UCNKPjijOc0WEJ7DIV_Vay3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Interpreting NMR Spectra 1
 
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Just one of many videos going through these dreaded NMR spectra that are a firm favourite with exam boards. Get a cup of tea and join in with these examples.
Views: 23698 Allery Chemistry
Carbon-13 NMR Spectroscopy
 
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This organic chemistry video tutorial provides a basic introduction into carbon-13 NMR spectroscopy. It covers broadband decoupled C-NMR where all signals appear as singlets as well as proton-coupled C-13 NMR spectroscopy where the signals appear as doublets, triplets, and quartets based on the N+1 rule splitting pattern of the hydrogen atoms that are directly attached to the carbon atoms. It also discusses DEPT C-13 NMR spectroscopy which is useful for identify C, CH, CH2, and CH3 carbons. This video explains how to assign the chemical shifts to different carbons given the C-13 NMR spectrum as well as proposing a structure given the molecule and using factors such as IHD and the number of signals present in the spectrum. Finally, this video discusses the different chemical shifts of functional groups such as alkyl groups like methyl, methylene, and methine groups as well as halogens, amines, alkenes, alkynes, ethers, alcohols, benzene rings, aldehydes, ketones, esters, and carboxylic acids.
Integration | Spectroscopy | Organic chemistry | Khan Academy
 
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How the area under each proton NMR signal can tell us the number of protons in a certain chemical environment. Created by Jay. Watch the next lesson: https://www.khanacademy.org/science/organic-chemistry/spectroscopy-jay/proton-nmr/v/spin-spin-splitting-coupling?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Missed the previous lesson? https://www.khanacademy.org/science/organic-chemistry/spectroscopy-jay/proton-nmr/v/diamagnetic-anisotropy?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Organic Chemistry channel: https://www.youtube.com/channel/UCNKPjijOc0WEJ7DIV_Vay3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
How To Draw The Proton NMR Spectrum of an Organic Molecule
 
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This organic chemistry video tutorial explains how to draw the proton nmr spectrum of an organic molecule by counting the number of signals, estimating the chemical shifts of the different types of hydrogen atoms, identifying the spin-spin splitting pattern, and considering the integration of the peaks as well. This video contains 2 example problems on H-NMR spectroscopy.
Determine Organic Structure from IR/NMR/C NMR/ Mass Spectroscopy Part 4
 
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CHECK OUT THE FIRST PRACTICE PROBLEM: https://www.youtube.com/watch?v=j21CAxsU30U CHECK OUT THE THIRD PRACTICE PROBLEM: https://www.youtube.com/watch?v=rUiRt... CHECK OUT SECOND PRACTICE PROBLEM: https://www.youtube.com/watch?v=8Nrz_... Have you subscribed? it is free :) In this video, I will do a full walk-through for a typical organic exam question, how to derive organic structure from spectroscopic data given such as H NMR, C NMR, IR spectroscopy and mass spectroscopy. Due to popular demand, I've uploaded the part 2 of this series. I hope you guys find this video beneficial. Part 3 is coming up as well. How to interpret C NMR? How to interpret H NMR? What is proton NMR? What is carbon NMR? Practice problem H NMR/ C NMR How to identify organic structure from H NMR How to identify organic structure from C NMR How to identify organic structure from Carbon NMR How to identify organic structure from proton NMR How to identify organic structure from Mass spectroscopy How to identify organic structure from IR spectroscopy H NMR practice problem C NMR practice problem IR spectroscopy practice problem Mass spectroscopy practice problem Determine organic structure from IR Determine organic structure from NMR Determine organic structure from C NMR Determine organic structure from Mass spectroscopy
Views: 6315 Hamed Hosseini
Chemical Shift In NMR Spectroscopy
 
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This organic chemistry video tutorial provides a basic introduction into chemical shift in NMR spectroscopy. It covers the inductive effect of electron withdrawing groups on the chemical shift of proton signals on a NMR spectrum.
21.1 High resolution 1H NMR (HL)
 
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Understandings: In a high resolution 1H NMR spectrum, single peaks present in low resolution can split into further clusters of peaks. Guidance: Students should be able to interpret the following from 1H NMR spectra: number of peaks, area under each peak, chemical shift and splitting patterns. Treatment of spin-spin coupling constants will not be assessed but students should be familiar with singlets, doublets, triplets and quartets.
Views: 14720 Mike Sugiyama Jones
NMR spectroscopy
 
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NMR spectroscopy lecture by Suman Bhattacharjee - This lecture explains about the NMR spectroscopy basics. Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy, is a research technique that exploits the magnetic properties of certain atomic nuclei. It determines the physical and chemical properties of atoms or the molecules in which they are contained. It relies on the phenomenon of nuclear magnetic resonance and can provide detailed information about the structure, dynamics, reaction state, and chemical environment of molecules. The intramolecular magnetic field around an atom in a molecule changes the resonance frequency, thus giving access to details of the electronic structure of a molecule. Most frequently, NMR spectroscopy is used by chemists and biochemists to investigate the properties of organic molecules, although it is applicable to any kind of sample that contains nuclei possessing spin. Suitable samples range from small compounds analyzed with 1-dimensional proton or carbon-13 NMR spectroscopy to large proteins or nucleic acids using 3 or 4-dimensional techniques. The impact of NMR spectroscopy on the sciences has been substantial because of the range of information and the diversity of samples, including solutions and solids. NMR spectra are unique, well-resolved, analytically tractable and often highly predictable for small molecules. Thus, in organic chemistry practice, NMR analysis is used to confirm the identity of a substance. Different functional groups are obviously distinguishable, and identical functional groups with differing neighboring substituents still give distinguishable signals. NMR has largely replaced traditional wet chemistry tests such as color reagents for identification. A disadvantage is that a relatively large amount, 2–50 mg, of a purified substance is required, although it may be recovered. Preferably, the sample should be dissolved in a solvent, because NMR analysis of solids requires a dedicated MAS machine and may not give equally well-resolved spectra. The timescale of NMR is relatively long, and thus it is not suitable for observing fast phenomena, producing only an averaged spectrum. Although large amounts of impurities do show on an NMR spectrum, better methods exist for detecting impurities, as NMR is inherently not very sensitive. NMR spectrometers are relatively expensive; universities usually have them, but they are less common in private companies. Modern NMR spectrometers have a very strong, large and expensive liquid helium-cooled superconducting magnet, because resolution directly depends on magnetic field strength. Less expensive machines using permanent magnets and lower resolution are also available, which still give sufficient performance for certain application such as reaction monitoring and quick checking of samples. There are even benchtop NMR spectrometers. This important and well-established application of nuclear magnetic resonance will serve to illustrate some of the novel aspects of this method. To begin with, the nmr spectrometer must be tuned to a specific nucleus, in this case the proton. The actual procedure for obtaining the spectrum varies, but the simplest is referred to as the continuous wave (CW) method. A typical CW-spectrometer is shown in the following diagram. Article source - Wikipedia.org For more information, log on to- http://www.shomusbiology.com/ Get Shomu's Biology DVD set here- http://www.shomusbiology.com/dvd-store/ Download the study materials here- http://shomusbiology.com/bio-materials.html Remember Shomu’s Biology is created to spread the knowledge of life science and biology by sharing all this free biology lectures video and animation presented by Suman Bhattacharjee in YouTube. All these tutorials are brought to you for free. Please subscribe to our channel so that we can grow together. You can check for any of the following services from Shomu’s Biology- Buy Shomu’s Biology lecture DVD set- www.shomusbiology.com/dvd-store Shomu’s Biology assignment services – www.shomusbiology.com/assignment -help Join Online coaching for CSIR NET exam – www.shomusbiology.com/net-coaching We are social. Find us on different sites here- Our Website – www.shomusbiology.com Youtube- https://www.youtube.com/user/TheFunsuman Thank you for watching NMR spectroscopy lecture by Suman Bhattacharjee.
Views: 374202 Shomu's Biology
Proton NMR Spectroscopy Peak Analysis Using C3H7Cl
 
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Are you struggling with organic chemistry? Download my free ebook "10 Secrets To Acing Organic Chemistry" here: http://leah4sci.com/orgo-ebook/ http://leah4sci.com/organicchemistry Presents: H-NMR Analysis Example This is part 2 in the H-NMR Analysis showing you how to apply the rules learned in part 1 to a simple example Additional videos on this topic and other Organic Chemistry topics can be found below http://leah4sci.com/organic-chemistry-video-and-quiz-library/ I also offer 1-1 online organic chemistry tutoring. More information here: http://leah4sci.com/organic-chemistry-tutor/
Views: 256936 Leah4sci
IR spectra practice | Spectroscopy | Organic chemistry | Khan Academy
 
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Practice with identifying the compound that corresponds to an IR spectrum. Created by Jay. Watch the next lesson: https://www.khanacademy.org/science/organic-chemistry/spectroscopy-jay/uv-vis-spectroscopy/v/uv-vis-spectroscopy?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Missed the previous lesson? https://www.khanacademy.org/science/organic-chemistry/spectroscopy-jay/infrared-spectroscopy-theory/v/ir-signals-for-carbonyl-compounds?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Organic Chemistry channel: https://www.youtube.com/channel/UCNKPjijOc0WEJ7DIV_Vay3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Proton NMR practice 2 | Spectroscopy | Organic chemistry | Khan Academy
 
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More practice determining the structure of a molecule from the molecular formula, hydrogen deficiency index, and proton NMR spectrum. Uses example of ether. Created by Jay. Watch the next lesson: https://www.khanacademy.org/science/organic-chemistry/spectroscopy-jay/proton-nmr/v/proton-nmr-practice-3?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Missed the previous lesson? https://www.khanacademy.org/science/organic-chemistry/spectroscopy-jay/proton-nmr/v/proton-nmr-practice-1?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Organic Chemistry channel: https://www.youtube.com/channel/UCNKPjijOc0WEJ7DIV_Vay3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
proton NMR- How to determine number of peaks
 
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This video demonstrates how to determine the number of peaks for a given molecule in 1H NMR spectra. Different types of structures were described along with NMR notation.
Views: 987 eGPAT
NMR - Integration of peaks and signals
 
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In this lesson we further examine NMR and the concept of integration which leads to hydrogen ratio of each signal.
Views: 7103 ChemComplete
AQA A-Level Chemistry - Proton NMR
 
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This video runs through Proton NMR, giving some detail to TMS and CDCl3 before describing how to interpret the spectra produced in Proton NMR.
Views: 99231 Eliot Rintoul
11.3 1H NMR - how to determine number of peaks (SL)
 
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In this video, I take a look at how to determine the number of peaks on a 1H NMR spectrum of an organic compound by looking at its structure formula. Note that I do not cover splitting of the peaks in this video as this covered in the HL part of the syllabus.
Views: 3728 Mike Sugiyama Jones