今日の注目!! IR Infrared Spectroscopy Review – 15 Practice Problems – Signal, Shape, Intensity, Functional Groups 12/14/2019



This organic chemistry video tutorial provides a review of IR Infrared Spectroscopy and how you can use it to distinguish one molecule from another according to their functional groups. This video contains plenty of lecture notes as well as a few multiple choice practice problems that will help you for your next organic chemistry test or exam.

Here’s the link for the complete video:

General Chemistry Video Playlist:

Access to Premium Videos:
https://www.patreon.com/MathScienceTutor

Facebook: https://www.facebook.com/MathScienceTutoring/

Here is a list of topics covered in this video:
1. Introduction to IR Spectroscopy
2. Absorption of IR energy – Molecular Vibrations – Stretching, Compression, & Bending
3. Concept of Transmittance and Absorbance
4. Relationship Between Wavelength, Wavenumber cm^-1, Frequency, and Energy
5. Signal Characteristics Shape: Broad vs Sharp
6. Signal Intensity: Weak, Medium, or Strong
7. The effect of hydrogen bonding and bond polarity on signal shape and intensity
8. Diagnostic / Functional Group Region vs Fingerprint Region
9. The Relationship Between The Mass of the Atom and The Wavenumber
10. Relationship Between Bond Strength and Wavenumber
11. The Effect of Conjugation on IR Frequency Absorption
12. IR Spectrum For Alkanes, Alkenes, & Alkynes
13. IR Spectrum of an Internal Alkyne vs a Terminal Alkyne
14. IR Active vs IR Inactive Compounds – Symmetrical & Assymetrical Bonds
15. Electric Field, Force, & Dipole Moments – IR Bond Stretch vs Compression
16. IR Spectrum of a Carboxylic Acid vs an Alcohol – OH Stretch
17. IR Spectrum of Aldehydes & Ketones: C=O Carbonyl Stretch @ 1700 cm^-1
18. IR Graph of Esters and Ethers: C-O Stretch @ 1000 to 1300. Sp2 vs Sp3 Hybridized Carbon
19. IR Graph of Primary and Secondary Amines: Single vs Double Peak at 3300 & 3400 cm^-1
Symmetric and Assymetric Stretching of NH2 Hydrogen Atoms.
20. IR Spectrum of Amides & Nitriles
21. Carbonyl C=O Stretch – Resonance Electron Donating Groups vs Inductive Electron Withdrawing Groups
22. IR Spectrum of Aromatic Benzene Ring Derivatives C=C & =CH Stretch

source

25 thoughts on “今日の注目!! IR Infrared Spectroscopy Review – 15 Practice Problems – Signal, Shape, Intensity, Functional Groups 12/14/2019

  1. 'Everything', but 99% of Earth's atmosphere. Nitrogen and Oxygen molecules do not absorb or emit any infrared radiated heat at any temperature, this is greenhouse theory. Greenhouse theory trumps quantum mechanics. I have found the solution to the paradox – what I call the IR catastrophe – but it means greenhouse theory has to go. I have found N2 and O2 do radiate and absorb, and I have the instrument to measure it with – the Raman IR spectrometer. Read my working papers. I am going to try and publish, feel free to help. 'Quantum Mechanics and Raman Spectroscopy Refute Greenhouse Theory' http://vixra.org/abs/1811.0498 and while you are at it read 'The Greenhouse Gases and Infrared Radiation Misconceived by Thermoelectric Transducers' http://vixra.org/abs/1811.0499

  2. You know, sometimes I wonder what do universities base themselves on when hiring new professors because almost all of them can't teach so well. It is people like you that should be up there teaching. You're a legend !

  3. You are a great example for why the education system is fucked up. I pay over 600 to drive (thru Houston traffic) to a smelly classroom for a prof I barely understand. Your videos are free, explanatory, and amazing. I want to donate if you have a patreon, please think about it.

コメントを残す

メールアドレスが公開されることはありません。 * が付いている欄は必須項目です