% TRANSMITTANCE100-8828480035.883350.18 (5H3028.632983.843888MITT8.0 7.5 7.0 PPMProton NMR140Carbon 13 NMA1202874.302588100HAVENUMBERS2H3.520083.0801H1603.051383.14P14525815882.51033.981012.7618882.086-10931094781.1H3HMF C₂H120MW 136!!!604020 PPM%C 79.41.5 PPM 1.0%H 8.90

The question is based on the concept of organic spectroscopy. We need to analyse the spectral data…

* TRANSMITTANCE 100 4000 3350. 5H CO 8200 2983. -8 8.0 7.5 7.0 PPM Proton NMR, 140 Carbon 13 NMA 120 2874.30 HAVENUMBERS 100 2H 3.5 3.0 80 1H se cear 1452158 1588 COCT 2.5 86 ccer 40 2.0 1012.76 -8 781.9 1H 780.26 3H _!!! 60 MF C₂H120 MW 136 %C 79.4 %H 8.9 1.5 PPM 1.0 20 PPM 0

* TRANSMITTANCE 100 4000 3350. 5H CO 8200 2983. -8 8.0 7.5 7.0 PPM Proton NMR, 140 Carbon 13 NMA 120 2874.30 HAVENUMBERS 100 2H 3.5 3.0 80 1H se cear 1452158 1588 COCT 2.5 86 ccer 40 2.0 1012.76 -8 781.9 1H 780.26 3H _!!! 60 MF C₂H120 MW 136 %C 79.4 %H 8.9 1.5 PPM 1.0 20 PPM 0

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter25: Instruments For Optical Spectrometry

Section: Chapter Questions

Problem 25.20QAP

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Concept explainers

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.

Question

% TRANSMITTANCE
100-
88
28
4800
35.88
3350.18 (
5H
3028.63
2983.84
3888
MITT
8.0 7.5 7.0 PPM
Proton NMR
140
Carbon 13 NMA
120
2874.30
2588
100
HAVENUMBERS
2H
3.5
2008
3.0
80
1H
1603.05
1383.14P
145258
1588
2.5
1033.98
1012.76
1888
2.0
86-10931094
781.
1H
3H
MF C₂H120
MW 136
!!!
60
40
20 PPM
%C 79.4
1.5 PPM 1.0
%H 8.9
0

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