IR Spect:Extra Practice
15. Analytical Techniques:IR, NMR, Mass Spect / IR Spect:Extra Practice / Problem 3
When properly positioned, substituents can transmit electronic data through the benzene ring. This enables us to discover this idea using IR spectroscopy and to apply it to an example. For the given series of substituted acetophenones, explain the carbonyl stretching frequencies. Why are the carbonyl stretching frequencies of 2- and 4-methoxy derivatives distinct from the 3-methoxy derivative but similar to each other?
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