Can i get help with these problems number 4 4.Jing IR spectrumA compound with molecular formula C6H100 give10080-quo1g iynodies daidwy 8 2quon/165040-201720150010004004000 debo adoo 2s0o 2o00Wavenumber (cm1)Identify the structure below that is most consistent with the spectrum:H.OHɔnenceen S2U.2bnod =D owd gniwollot erit not noitg1ozds to dmunevew ert 16gmohir

Answered: 4. Jing IR spectrum A compound with…

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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Can i get help with these problems number 4

4.
Jing IR spectrum
A compound with molecular formula C6H100 give
100
80-
quo1g iynod
ies daidwy 8 2quon
/1650
40-
20
1720
1500
1000
400
4000 debo adoo 2s0o 2o00
Wavenumber (cm1)
Identify the structure below that is most consistent with the spectrum:
H.
OH
ɔnenceen S2U.2bnod =D owd gniwollot erit not noitg1ozds to dmunevew ert 16gmo
hir

Expert Solution

Step 1

Stretching frequency 1720 cm^-1 corresponds presense of carbonyl functional group

1650 cm^-1 corresponds to ( c=c ) group

Thus most suitable structure which has both ketone functionality and (C=C ) unit are

But amoung them alpha-beta unsaturated carbonyl unit ( 2^nd ) molecule due to conjugation, both ketone and alkene has less stretching frequency as expected.

Thus correct matching is noticed in case of 1^st compound.

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