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C=O Stretch
For carbonyls that are part of a conjugated π-network, the C=O stretch:
A. has a higher frequency than the analogous C=O in a non-conjugated system
B. is always located at 1715 cm–1
C. has a lower frequency than the analogous C=O in a non-conjugated system
D. exhibits a much lower magnitude of peak intensity
E. is identical to the analogous C=O stretch in a non-conjugated system
To see the solution and images, visit the following link:
http://datquestionoftheday.com/organic-chemistry/co-stretch/
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