Answered: (a) HO, (c) Spectrum I 220 200 160 140…

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(a) HO, (c) Spectrum I 220 200 160 140 120 PPM 100 80 60 40 20 Spectrum II 180 160 100 PPM Spectrum III 30 PPM -8

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL3: Carbon (13c) Nmr Spectroscopy

Section: Chapter Questions

Problem 4CTQ

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Question

Each of the functional groups shown below generates three different C13NMR signals. Use
the C13NMR table in your textbook or the course module to match each functional group to
one of the C13NMR spectra shown below

(a)
он
(c)
Spectrum I
160
180
140
100
20
200
220
60
40
120
PPM
80
Spectrum II
180
140
120
100
PPM
160
Spectrum III
20
10
40
PPM
80
60
50

Definition Definition Group of atoms that shape the chemical characteristics of a molecule. The behavior of a functional group is uniform in undergoing comparable chemical reactions, regardless of the other constituents of the molecule. Functional groups aid in the classification and anticipation of reactivity of organic molecules.

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