Hi there...can u please answer for question a, b & c. Thanks in advance 1. An unknown compound X has a molecular formula C13H19NO and produced a[M]+ ion at m/z 205. Its IR spectrum shows significant stretching frequencies at3298 cm and 1640 cm1. The 'H and 1°C NMR spectra of unknown X are shownbelow:'H NMR9153|1896153PPM13C NMR1801601401208040100PPMa) State its Index of Hydrogen Deficiency (IHD).b) Give complete peak assignments for both 'H and 1°C NMR spectra.c) Predict the structure of the unknown X, based on spectroscopic data given.

The degree of unsaturation or the number of multiple bonds, number of rings present in a molecule is…

1. An unknown compound X has a molecular formula C13H19NO and produced a [M]+ ion at m/z 205. Its IR spectrum shows significant stretching frequencies at 3298 cm and 1640 cm. The 'H and 1°C NMR spectra of unknown X are shown below:

1. An unknown compound X has a molecular formula C13H19NO and produced a [M]+ ion at m/z 205. Its IR spectrum shows significant stretching frequencies at 3298 cm and 1640 cm. The 'H and 1°C NMR spectra of unknown X are shown below:

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

Chapter21: Benzene And The Concept Of Aromaticity

Section: Chapter Questions

Problem 21.20P

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Hi there...can u please answer for question a, b & c. Thanks in advance

1. An unknown compound X has a molecular formula C13H19NO and produced a
[M]+ ion at m/z 205. Its IR spectrum shows significant stretching frequencies at
3298 cm and 1640 cm1. The 'H and 1°C NMR spectra of unknown X are shown
below:
'H NMR
9
15
3
|18
9
6
15
3
PPM
13C NMR
180
160
140
120
80
40
100
PPM
a) State its Index of Hydrogen Deficiency (IHD).
b) Give complete peak assignments for both 'H and 1°C NMR spectra.
c) Predict the structure of the unknown X, based on spectroscopic data given.

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