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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Question
what is the compound from the given NMR spectrum?
Expert Solution
Step 1: Explanation
In 13C spectroscopy, a carbon associated with carbonyl carbon (C=O) has a peak at ~ 170-180 ppm. A carbon with directly attached with O atom gives a 13C peak at ~60-70 ppm. Rest all normal hydrocarbon gives peak in the range of 10-30 ppm.
For the 1H NMR simply you can say that more electronegative the atom attached near to H give a chemical shift as deshielded. ( Away from zero).
And fro electron donating groups attached, H gave a peak towards zero depending upon the strength of group attached. (Shielding).
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