These structures represent C9H14O2. What is the structure and degrees of unsaturation? What important functional groups are shown in the spectra and which peaks correspond with which carbons and protons

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These structures represent C9H14O2. What is the structure and degrees of unsaturation? What important functional groups are shown in the spectra and which peaks correspond with which carbons and protons ?
### Infrared (IR) Spectrum

The first graph is an IR spectrum that displays transmittance (%) against wavenumber (cm⁻¹), ranging from 4000 to 500 cm⁻¹. Key peaks are observed, which suggest the presence of certain functional groups within a compound, commonly including characteristic OH, NH, or CH stretches and various fingerprint region peaks.

### Proton Nuclear Magnetic Resonance (¹H NMR) Spectrum

The second graph is a ¹H NMR spectrum that plots chemical shift (PPM) on the x-axis with peak areas indicating relative hydrogen atom environments:

- **(a)** Doublet of doublets, 1H
- **(b)** Doublet of doublets, 1H
- **(c)** Doublet of doublets, 1H
- **(d)** Quintet, 1H
- **(e)** Multiplet, 4H
- **(f)** Multiplet, 6H

These peaks indicate different chemical environments of hydrogens in the compound, providing insights into its structure.

### Carbon-13 Nuclear Magnetic Resonance (¹³C NMR) Spectrum

The third graph is a ¹³C NMR spectrum, displaying chemical shift (PPM) from 220 to 0 PPM:

- Peaks are labeled from (a) to (g), corresponding to distinct carbon environments in the molecule. Peaks **(c)**, **(a)**, **(b)**, **(e)**, **(g)**, **(f)**, and **(d)** show chemical shifts for carbons in different electronic environments.

These spectra together help in elucidating the molecular structure of the compound under study.
Transcribed Image Text:### Infrared (IR) Spectrum The first graph is an IR spectrum that displays transmittance (%) against wavenumber (cm⁻¹), ranging from 4000 to 500 cm⁻¹. Key peaks are observed, which suggest the presence of certain functional groups within a compound, commonly including characteristic OH, NH, or CH stretches and various fingerprint region peaks. ### Proton Nuclear Magnetic Resonance (¹H NMR) Spectrum The second graph is a ¹H NMR spectrum that plots chemical shift (PPM) on the x-axis with peak areas indicating relative hydrogen atom environments: - **(a)** Doublet of doublets, 1H - **(b)** Doublet of doublets, 1H - **(c)** Doublet of doublets, 1H - **(d)** Quintet, 1H - **(e)** Multiplet, 4H - **(f)** Multiplet, 6H These peaks indicate different chemical environments of hydrogens in the compound, providing insights into its structure. ### Carbon-13 Nuclear Magnetic Resonance (¹³C NMR) Spectrum The third graph is a ¹³C NMR spectrum, displaying chemical shift (PPM) from 220 to 0 PPM: - Peaks are labeled from (a) to (g), corresponding to distinct carbon environments in the molecule. Peaks **(c)**, **(a)**, **(b)**, **(e)**, **(g)**, **(f)**, and **(d)** show chemical shifts for carbons in different electronic environments. These spectra together help in elucidating the molecular structure of the compound under study.
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