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Author Question: The CO absorption in carboxylic acids appears around 1250 cm-1. The CO absorption in an alcohol ... (Read 332 times)

tashina2013

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The C–O absorption in carboxylic acids appears around 1250 cm-1.  The C–O absorption in an alcohol appears around 1050 cm-1. Explain why.



◦ Only compound I has resonance, causing it to have a higher stretching absorption.
◦ Compound II has more possible resonance structures, increasing the single bond character of the carbonyl group.
◦ 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.
◦ Only compound II has resonance, causing it to have a higher stretching absorption.
◦ Compound I has more possible resonance structures, increasing the single bond character of the carbonyl group.


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Marked as best answer by tashina2013 on Feb 17, 2022

Marys

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Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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