100 FTIR NEAT 90 80 70 60 50 3043. 1481, 1463.7 956.5 30 1263. 20 1718 3 2500 2250 17 50 1500 1250 1000 750 500 250 500 4250 37 50 3500 3250 3000 2750 2000 4000 Wavenumbers (cm-1) ©2018, Sigma-Aldrich Co. ALL RIGHTS RESERVED Observed absorption (cm-1) Expected frequency range (cm1) (from IR absorption table) Bond vibration Structure: Functional group(s):. 40 10 % Transmittance

100 FTIR NEAT 90 80 70 60 50 3043. 1481, 1463.7 956.5 30 1263. 20 1718 3 2500 2250 17 50 1500 1250 1000 750 500 250 500 4250 37 50 3500 3250 3000 2750 2000 4000 Wavenumbers (cm-1) ©2018, Sigma-Aldrich Co. ALL RIGHTS RESERVED Observed absorption (cm-1) Expected frequency range (cm1) (from IR absorption table) Bond vibration Structure: Functional group(s):. 40 10 % Transmittance

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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SPECTRUM 1: C3H₂NO possible structing % Transmittance 100 95 90 85 80 75 70. 65 60 55 50 45 4000 3750 3500 3250 ***** ***** 3000 ATR 2750 2500 2250 2000 Wavenumbers (cm-1) © 2023, Sigma-Aldrich Co. ALL RIGHTS RESERVED ******* 1750 1500 ****** ****** 1250 ***** **** 1000 750
IR - Cyclohexanone 100 90 80 70 60 50 40 30 20 10 4000 3500 3000 2500 2000 1500 1000 500 Wave Number (cm -1) Band Intensity Assigned to the link Frequency (cm') Vibrational mode W M S % Transmittance
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Which of the structures shown below the IR spectrum matches the IR spectrum below. 1 Relative Transmittance T 2000 Wavenumber (cm-1) NIST Chemistry WebBook (http://webbook.nist.gov/chemistry) 0.9 0.8 0.7 0.6 4000 3000 B 1000 ingit
A student takes an IR spectrum of an unknown compound. The IR spectrum shows significant stretches at 3159 cm³¹ (m, sh), 3089 cm ¹ (m, sh), 3000 cm ¹ (m, sh), 2997 cm-¹ (m, sh), 1620 cm-¹ (s, sh), 1494 cm-¹ (s, sh), and 1210 cm-¹ (s, sh). Which possible compound is it? Key: S = Strong, M = Medium, W = Weak, Sh = Sharp, Br = Broad Anisole Aniline O Acetanilide O Acetone O Phenol
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