Infrared Spectrum Initial Analysis Weak Signal Paste the IR spectrum below and label the mportant peaks. 103 102 100 98 96 94 92 Strong Signal 1077.141. 90 2961.02om1, 90.40NT 88 * 86 1499em1, ONT 84 151koom 6.20 143emit. 4.4 74 34.4.40%T 921.45em-1, 8poNT 82 751om-1, 33NT 80 112omt, 80 INT 1 23om1. 80.7ENT 50.s0om-1, 80.soNT 78 11Bom1, 7.6NT 76 1691.77om1, 7761NT 74 44 1200.oomt, 75.6ONT Lem ks unknown #27 2/18/20 72 1336.e. 70.19NT 70 694 4000 3500 3000 2500 2000 1500 1000 700 cm-1
Infrared Spectrum Initial Analysis Weak Signal Paste the IR spectrum below and label the mportant peaks. 103 102 100 98 96 94 92 Strong Signal 1077.141. 90 2961.02om1, 90.40NT 88 * 86 1499em1, ONT 84 151koom 6.20 143emit. 4.4 74 34.4.40%T 921.45em-1, 8poNT 82 751om-1, 33NT 80 112omt, 80 INT 1 23om1. 80.7ENT 50.s0om-1, 80.soNT 78 11Bom1, 7.6NT 76 1691.77om1, 7761NT 74 44 1200.oomt, 75.6ONT Lem ks unknown #27 2/18/20 72 1336.e. 70.19NT 70 694 4000 3500 3000 2500 2000 1500 1000 700 cm-1
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
Chapter12: Atomic X-ray Spectrometry
Section: Chapter Questions
Problem 12.10QAP
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Question
please label the important peaks for me and explain why
Expert Solution
Step 1
- Infrared(IR) spectroscopy:- IR helps in determining the functional groups (example- ketone, alcohol, amine group etc.) present in compound/sample given.
- IR range which actually helps in determining the functional groups=1500cm-1 to 4000cm-1
- In this spectroscopy, one more region exists which is known as the Fingerprint region (FR region) which has a range from 500cm-1 to 1500cm-1.
- The FR region is unique to every molecule or compound and therefore named as, fingerprint region because fingerprints are also unique to every human.
- But the FR region is very complex to study and therefore, we study only the IR region (from 4000cm-1 to 1500cm-1).
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