**FTIR Spectrum Analysis and Functional Group Identification**
1. **Peak 875 cm⁻¹ (Medium Sharp)** - **Assignment**: C-C stretching (aromatic or aliphatic backbone). - **Justification**: Peaks around 875 cm⁻¹ often correspond to C-C stretching vibrations in aromatic or aliphatic structures.
2. **Peak 1024 cm⁻¹ (Strong Broad)** - **Assignment**: C-O stretching (alcohols, ethers, or esters). - **Justification**: Broad and strong peaks in this region are characteristic of C-O stretching vibrations in alcohols, ethers, or esters.
3. **Peak 1159 cm⁻¹ (Medium Sharp)** - **Assignment**: C-O or C-N stretching. - **Justification**: Peaks near 1159 cm⁻¹ are often associated with C-O or C-N stretching vibrations, commonly found in ethers, esters, or amines.
4. **Peak 1316 cm⁻¹ (Weak Sharp)** - **Assignment**: C-H bending (methyl or methylene groups). - **Justification**: Weak peaks in this region are indicative of C-H bending vibrations in aliphatic chains.
5. **Peak 1424 cm⁻¹ (Weak Broad)** - **Assignment**: C-H bending (methyl or methylene groups). - **Justification**: Broad peaks around 1424 cm⁻¹ are associated with C-H bending vibrations in aliphatic chains.
6. **Peak 2918 cm⁻¹ (Weak Broad)** - **Assignment**: C-H stretching (aliphatic chains). - **Justification**: Weak and broad peaks in this region correspond to C-H stretching vibrations in aliphatic groups.
7. **Peak 3291 cm⁻¹ (Weak Broad)** - **Assignment**: O-H or N-H stretching. - **Justification**: Broad peaks near 3291 cm⁻¹ are characteristic of O-H (alcohols, phenols) or N-H (amines) stretching vibrations.
**Conclusion**: The FTIR spectrum suggests the presence of aliphatic chains (C-H stretching and bending), C-O bonds (likely from ethers, esters, or alcohols), and possible O-H or N-H groups. The strong and broad peak at 1024 cm⁻¹ indicates a significant contribution from C-O stretching, suggesting the presence of ethers or esters. The weak and broad peak at 3291 cm⁻¹ hints at O-H or N-H groups, possibly from alcohols or amines. The medium sharp peaks at 875 cm⁻¹ and 1159 cm⁻¹ suggest aromatic or aliphatic C-C and C-O/C-N bonds. The compound likely belongs to the class of **aliphatic ethers, esters, or alcohols with possible amine functionality**.
This discussion presents an infrared spectral analysis combining
automated interpretation with reference comparison to support
functional group identification and structural assessment.
FTIR Spectrum Interpretation Summary
Comparative Analysis Conclusion
AI-assisted Interpretation Conclusion
**FTIR Spectrum Analysis and Functional Group Identification**
1. **Peak 875 cm⁻¹ (Medium Sharp)**
- **Assignment**: C-C stretching (aromatic or aliphatic backbone).
- **Justification**: Peaks around 875 cm⁻¹ often correspond to C-C stretching vibrations in aromatic or aliphatic structures.
2. **Peak 1024 cm⁻¹ (Strong Broad)**
- **Assignment**: C-O stretching (alcohols, ethers, or esters).
- **Justification**: Broad and strong peaks in this region are characteristic of C-O stretching vibrations in alcohols, ethers, or esters.
3. **Peak 1159 cm⁻¹ (Medium Sharp)**
- **Assignment**: C-O or C-N stretching.
- **Justification**: Peaks near 1159 cm⁻¹ are often associated with C-O or C-N stretching vibrations, commonly found in ethers, esters, or amines.
4. **Peak 1316 cm⁻¹ (Weak Sharp)**
- **Assignment**: C-H bending (methyl or methylene groups).
- **Justification**: Weak peaks in this region are indicative of C-H bending vibrations in aliphatic chains.
5. **Peak 1424 cm⁻¹ (Weak Broad)**
- **Assignment**: C-H bending (methyl or methylene groups).
- **Justification**: Broad peaks around 1424 cm⁻¹ are associated with C-H bending vibrations in aliphatic chains.
6. **Peak 2918 cm⁻¹ (Weak Broad)**
- **Assignment**: C-H stretching (aliphatic chains).
- **Justification**: Weak and broad peaks in this region correspond to C-H stretching vibrations in aliphatic groups.
7. **Peak 3291 cm⁻¹ (Weak Broad)**
- **Assignment**: O-H or N-H stretching.
- **Justification**: Broad peaks near 3291 cm⁻¹ are characteristic of O-H (alcohols, phenols) or N-H (amines) stretching vibrations.
**Conclusion**:
The FTIR spectrum suggests the presence of aliphatic chains (C-H stretching and bending), C-O bonds (likely from ethers, esters, or alcohols), and possible O-H or N-H groups. The strong and broad peak at 1024 cm⁻¹ indicates a significant contribution from C-O stretching, suggesting the presence of ethers or esters. The weak and broad peak at 3291 cm⁻¹ hints at O-H or N-H groups, possibly from alcohols or amines. The medium sharp peaks at 875 cm⁻¹ and 1159 cm⁻¹ suggest aromatic or aliphatic C-C and C-O/C-N bonds. The compound likely belongs to the class of **aliphatic ethers, esters, or alcohols with possible amine functionality**.
This discussion presents an infrared spectral analysis combining automated interpretation with reference comparison to support functional group identification and structural assessment.