Compound +4 IR 4000 Unknown #4

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
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I need some help with this IR spectra for C6H10O What are the peaks Is there IR special features with conjugation, resonance or hydrogen-bonding?
The image shows an infrared (IR) spectrum graph for an unspecified compound labeled as "Unknown #4." 

### Description of the Graph:

- **Axes:**
  - The horizontal axis represents the wavenumber in cm⁻¹, ranging from 4000 cm⁻¹ on the left to about 400 cm⁻¹ on the right.
  - The vertical axis represents the % transmittance, with values ranging from 0 to 100.

### Features of the Spectrum:

- **Peaks and Troughs:**
  - Several distinct peaks are observed across the spectrum, indicating different functional groups within the compound.
  - Major absorptions occur around 3400 cm⁻¹, 2900 cm⁻¹, and between 1600 cm⁻¹ to 600 cm⁻¹.
  
- **Functional Group Identification:**
  - The broad peak around 3400 cm⁻¹ could suggest the presence of O-H or N-H bonds, common in alcohols, phenols, or amines.
  - Peaks around 2900 cm⁻¹ typically indicate C-H stretching vibrations, associated with alkyl groups.
  - The region between 1600 cm⁻¹ and 600 cm⁻¹ usually contains various fingerprint region peaks specific to the compound's structure.

This IR spectrum is essential for identifying functional groups and determining the molecular structure of the unknown compound.
Transcribed Image Text:The image shows an infrared (IR) spectrum graph for an unspecified compound labeled as "Unknown #4." ### Description of the Graph: - **Axes:** - The horizontal axis represents the wavenumber in cm⁻¹, ranging from 4000 cm⁻¹ on the left to about 400 cm⁻¹ on the right. - The vertical axis represents the % transmittance, with values ranging from 0 to 100. ### Features of the Spectrum: - **Peaks and Troughs:** - Several distinct peaks are observed across the spectrum, indicating different functional groups within the compound. - Major absorptions occur around 3400 cm⁻¹, 2900 cm⁻¹, and between 1600 cm⁻¹ to 600 cm⁻¹. - **Functional Group Identification:** - The broad peak around 3400 cm⁻¹ could suggest the presence of O-H or N-H bonds, common in alcohols, phenols, or amines. - Peaks around 2900 cm⁻¹ typically indicate C-H stretching vibrations, associated with alkyl groups. - The region between 1600 cm⁻¹ and 600 cm⁻¹ usually contains various fingerprint region peaks specific to the compound's structure. This IR spectrum is essential for identifying functional groups and determining the molecular structure of the unknown compound.
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