Match the four structures with the four IR spectra (by putting a proper letter in the box to the right of each spectrum). Use specific IR absorptions for various functional groups to identify the structures. ОН`NH2OHВ.С.Ignore the peaks above OWavenumber2000Wavenumbers (cm-1)% Transmittance% Transmittance%Transmittance2068 68DE3376.243324.7320 LEE3305 853081.742991.1034.732899.682912.042855.982836 802714.552611.191641.631668.261616.40 1590.181550.631505.101469.191417.281419.821374.411392 211422.181314.311277.701223.01OS 9EZI1184 101159.021107.581110.18 1100.231049.881046.8266'086919.82964 52827.73771.90771 40 755.19776.18693.94662.276T8 27639.48603.18556.19528.41470.55

IR provides the information of functional groups of unknown compound.

Answered: `NH2 `OH А. В. С. D. 2000 1000…

`NH2 `OH А. В. С. D. 2000 1000 Waenumere m1) Ignore the peaks above O Wavenumbers em 4000 2500 2000 Wavenumbers (cm-1) 80 STranamittance Transmittance F OLM

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter8: An Introduction To Optical Atomic Spectrometry

Section: Chapter Questions

Problem 8.2QAP

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Question

Match the four structures with the four IR spectra (by putting a proper letter in the box to the right of each spectrum). Use specific IR absorptions for various functional groups to identify the structures.

ОН
`NH2
OH
В.
С.
Ignore the peaks above O
Wavenumber
2000
Wavenumbers (cm-1)
% Transmittance
% Transmittance
%Transmittance
20
68 68DE
3376.24
3324.73
20 LEE
3305 85
3081.74
2991.10
34.73
2899.68
2912.04
2855.98
2836 80
2714.55
2611.19
1641.63
1668.26
1616.40 1590.18
1550.63
1505.10
1469.19
1417.28
1419.82
1374.41
1392 21
1422.18
1314.31
1277.70
1223.01
OS 9EZI
1184 10
1159.02
1107.58
1110.18 1100.23
1049.88
1046.82
66'086
919.82
964 52
827.73
771.90
771 40 755.19
776.18
693.94
662.27
6T8 27
639.48
603.18
556.19
528.41
470.55

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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