#3: C₂H13N (peaks: @3.6ppm-singlet, @2.9ppm-septet, @1.2ppm-doublet) - IR shows peaks @3300,3010, 1606 and 1585cm-¹374H65300 MHz 'H NMRIn CDC32.11432H 1H216Hpossible structure0

IR spectroscopy is used to determine the functional groups present in the sample. Different…

Answered: #3: C9H13N (peaks: @3.6ppm-singlet,…

#3: C9H13N (peaks: @3.6ppm-singlet, @2.9ppm-septet, @1.2ppm-doublet) - IR shows peaks @3300, 3010, 1606 and 1585cm-¹ 4H 300 MHz 'H NMR In CDCB 2H 1H 2 6H possible structure

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter14: Mass Spectrometry

Section: Chapter Questions

Problem 14.27P: Following is the mass spectrum of an unknown compound. The two highest peaks are at m/z 120 and 122....

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Concept explainers

NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.

Question

#3: C₂H13N (peaks: @3.6ppm-singlet, @2.9ppm-septet, @1.2ppm-doublet) - IR shows peaks @3300,
3010, 1606 and 1585cm-¹
3
7
4H
6
5
300 MHz 'H NMR
In CDC3
2.11
4
3
2H 1H
2
1
6H
possible structure
0

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Step 2: Analysing IR data

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Step 3: Calculating double bond equavalents

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Step 4: Analysing NMR spectrum

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Step 5: Analysing NMR spectrum

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Propose structures for molecules that meet the following descriptions. Assume that the kinds of carbons (1, 2, 3, or 4) have been assigned by DEPTNMR. a) C6H12O;IR: 1715 cm-1; 13C NMR: 8.0 (1), 18.5 (1), 33.5 (2), 40.6 (3), 214.0 (4) b) C5H10O; IR: 1730 cm-1; 13C NMR: 22.6 (1), 23.6 8 (3), 52.8 8 (2), 202.4 8 (3) c) C6H8O; IR: 1680 cm-1; 13C NMR: 22.9 (2), 25.8 8 (2), 38.2 (2). 129.8 8 (3), 150.6 8 (3), 198.7 (4)
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