Discuss interpretation of IR spectrum below. Band position (cm1)Bond typeО-Н3358 cm2974 cm' and 2887 cmС-НС-Н1455, 1381, 1330 cm'С-О1090 and 1050 cm-881 and 669 cm1С-НThe strong and broad peak narrowing onto 3358 cm-1 indicates O-H stretching ofalcohol.The strong and medium peaks at 2974 cm-1 and 2887 cm-1 indicates C-H stretchingof CH or CH2 or CH3The medium and sharp peaks at 1455,1381,1330 cm-1 indicates C-H bending of CHor CH2 or CH3The strong and sharp peaks at 1090 and 1050 cm-1 indicates C-O stretching ofalcohol.The strong and sharp peak at 881 and 669 cm-1 indicates C-H bending.Based on the interpretation of IR spectrum, the unknown is an saturated alcohol .

IR spectroscopy is mainly used for the identification of the functional group present in the…

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Discuss interpretation of IR spectrum below.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Discuss interpretation of IR spectrum below.

Band position (cm1)
Bond type
О-Н
3358 cm
2974 cm' and 2887 cm
С-Н
С-Н
1455, 1381, 1330 cm'
С-О
1090 and 1050 cm-
881 and 669 cm1
С-Н
The strong and broad peak narrowing onto 3358 cm-1 indicates O-H stretching of
alcohol.
The strong and medium peaks at 2974 cm-1 and 2887 cm-1 indicates C-H stretching
of CH or CH2 or CH3
The medium and sharp peaks at 1455,1381,1330 cm-1 indicates C-H bending of CH
or CH2 or CH3
The strong and sharp peaks at 1090 and 1050 cm-1 indicates C-O stretching of
alcohol.
The strong and sharp peak at 881 and 669 cm-1 indicates C-H bending.
Based on the interpretation of IR spectrum, the unknown is an saturated alcohol .

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