QUESTION 24 A colorless solid that melts at 103 to 105°C was subjected to IR Spectroscopy to determine the functional groups present and partially determine its nomenclature based on the molecular formula given. What are the functional groups present based on the major infrared absorptions? (Select Possible Answers) 100 643 2866 704 2964 2939 14274 3190 1418 C;H„NO KBr disc 3366 sample 1663 1633 2000 vavenumber cm 4000 3000 1500 1000 S00 O Primary Amine Alkane Secondary Amine Tertiary Amine Nitriles O Tertiary Amides O Acid Anhydrides Transmittance %T

QUESTION 24 A colorless solid that melts at 103 to 105°C was subjected to IR Spectroscopy to determine the functional groups present and partially determine its nomenclature based on the molecular formula given. What are the functional groups present based on the major infrared absorptions? (Select Possible Answers) 100 643 2866 704 2964 2939 14274 3190 1418 C;H„NO KBr disc 3366 sample 1663 1633 2000 vavenumber cm 4000 3000 1500 1000 S00 O Primary Amine Alkane Secondary Amine Tertiary Amine Nitriles O Tertiary Amides O Acid Anhydrides Transmittance %T

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter94: Infrared Spectroscopy

Section: Chapter Questions

Problem 2P

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QUESTION 1 The IR spectrum below belongs to an organic compound A having one nitrogen atom. Determine which structures that fits to the IR spectrum. Justify your answer by providing two (2) IR absorption peaks with their wavenumber. CN `NH2 Ahserbance /% 50- 100- 2000 Wavenumberrs/ cm 4000 3000 2F00 1F00 1000 F00
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WHich of these molecules best corresponds to IR spectrum shown. and why?
Assign structures to thefollowing compounds(A, B, C, andD) on the basis of themolecular formulas and spectra given. You will haveto determine therelative ratio ofthe protons from the integration curve shown for each peak.
The IR spectrum of a sample contains absorptions at 3050, 2950, and 1620 cm-1. Towhat class of organic compound does this sample most likely belong? ExplainA) alkaneB) alkeneC) alkyneD) esterE) alcohol
How can IR spectroscopy be used to distinguish between each pair of isomers?
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2. Determine the structure of a compound with a molecular formula of C6H120 and exhibits the following 'H NMR and 1°C NMR spectra. No peaks exchange in D20. | = 6 = 3 200 100 0.0 13 C NMR 1.1 1.0 | = 2 | = 1 %3D 2.6 2.5 2.4 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 1 H NMR
1) Determine the functional group(s) in the compound having the following IR spectrum. 2) Identify the diagnotic signal(s) , explain what led you to this conclusion.
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Name the compound