I have a question on this part can ethyl acetate show an ir spectrum on around 3400cm-1? Am just asking coz am confused u guys say it is carbonyl overtone which here is ester . so isnt ester show ir spectra around 1700cm-1 am confused thank u ### Step 2: IR Analysis- **Strong and Sharp Peaks (2990-2840 cm-1)**: This range, with a noted peak at 2908.57 cm-1, indicates C-H stretching of sp3 carbon (CH, CH2, or CH3 units).- **Strong and Narrow Peak (1760 cm-1)**: Indicates C=O stretching frequency, associated with the ester functional group.- **Strong and Narrow Peaks (1400-1500 cm-1)**: These peaks suggest C-H bending of sp3 carbon (CH, CH2, or CH3 units).- **Peaks (1000-1200 cm-1)**: With a mentioned peak at 1160.5 cm-1, these indicate C-O stretching frequency.- **Strong and Sharp Peaks (800-950 cm-1)**: These indicate C-H deformations.- **Sharp and Medium Peak (around 3400 cm-1)**: This peak indicates overtones of the carbonyl functional group, specifically here for an ester.

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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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I have a question on this part can ethyl acetate show an ir spectrum on around 3400cm-1? Am just asking coz am confused u guys say it is carbonyl overtone which here is ester . so isnt ester show ir spectra around 1700cm-1 am confused thank u

### Step 2: IR Analysis

- **Strong and Sharp Peaks (2990-2840 cm<sup>-1</sup>)**: This range, with a noted peak at 2908.57 cm<sup>-1</sup>, indicates C-H stretching of sp<sup>3</sup> carbon (CH, CH<sub>2</sub>, or CH<sub>3</sub> units).

- **Strong and Narrow Peak (1760 cm<sup>-1</sup>)**: Indicates C=O stretching frequency, associated with the ester functional group.

- **Strong and Narrow Peaks (1400-1500 cm<sup>-1</sup>)**: These peaks suggest C-H bending of sp<sup>3</sup> carbon (CH, CH<sub>2</sub>, or CH<sub>3</sub> units).

- **Peaks (1000-1200 cm<sup>-1</sup>)**: With a mentioned peak at 1160.5 cm<sup>-1</sup>, these indicate C-O stretching frequency.

- **Strong and Sharp Peaks (800-950 cm<sup>-1</sup>)**: These indicate C-H deformations.

- **Sharp and Medium Peak (around 3400 cm<sup>-1</sup>)**: This peak indicates overtones of the carbonyl functional group, specifically here for an ester.

Expert Solution

Step 1

Overtone is the multiple of fundamental band. In case of carbonyl fundamental band (1700cm-1) the value of overtone will came at 3400cm-1. This can be confirmed by labelling O¹⁶to O¹⁸. If shit in value of overtone occur will characterise it as overtone.

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