The C-O absorption in carboxylic acids appears around 1250 cm 1. The C-O absorption in an alcohol appears around 1050 cm1. Explain why. 1250cm-1 .1 1050cm O Only compound I has resonance, causing it to have a higher stretching absorption. O Only compound II has resonance, causing it to have a higher stretching absorption. O Compound Il has more possible resonance structures, increasing the single bond character of the carbonyl group. O Compound I has more possible resonance structures, increasing the single bond character of the carbonyl group. O Compound I has a C to O bond with more single bond character than that of compound II, increasing the expected stretching absorption of the bond.

The C-O absorption in carboxylic acids appears around 1250 cm 1. The C-O absorption in an alcohol appears around 1050 cm1. Explain why. 1250cm-1 .1 1050cm O Only compound I has resonance, causing it to have a higher stretching absorption. O Only compound II has resonance, causing it to have a higher stretching absorption. O Compound Il has more possible resonance structures, increasing the single bond character of the carbonyl group. O Compound I has more possible resonance structures, increasing the single bond character of the carbonyl group. O Compound I has a C to O bond with more single bond character than that of compound II, increasing the expected stretching absorption of the bond.

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter3: Organic Compounds: Alkanes And Their Stereochemistry

Section3.SE: Something Extra

Problem 51AP

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