100 80 60 %T 40 20 4000 2000 Wavenumberlcm-1) 3000 1500 1000 500 400 IR2011-88120TK Wave number (cm1) and Transmittance (T%) 3358 12 1381 54 881 37 2974 13 1330 68 669 67 2927 38 1274 74 2887 35 1090 22 1455 59 1050 7

100 80 60 %T 40 20 4000 2000 Wavenumberlcm-1) 3000 1500 1000 500 400 IR2011-88120TK Wave number (cm1) and Transmittance (T%) 3358 12 1381 54 881 37 2974 13 1330 68 669 67 2927 38 1274 74 2887 35 1090 22 1455 59 1050 7

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

Chapter7: Components Of Optical Instruments

Section: Chapter Questions

Problem 7.16QAP

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Concept explainers

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.

Question

3. IR Spectroscopy
100
80
60
%T
40
20
2000
2000
Wavenumberlcm-1)
3000
1500
1000
500 400
IR2011-88120TK
Wave number (cm1) and Transmittance (T%)
3358 12 1381 54 881 37
2974 13 1330 68 669 67
2927 38 1274 74
|2887 35 1090 22
1455 59 1050 7

4. Assign bond types that correspond to the absorption in the IR spectrum of
unknown X.
Table 3 Interpretation of IR spectrum
Band position (cm1)
Bond type

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