Ask AI: INTERPRETATION OF IR RESULTS OF acetone .SUMMARIZED VISION

Interpreting the IR (infrared) spectrum of acetone involves identifying specific peaks that correspond to different vibrational modes of the molecules in the sample. Here's a summarized interpretation: 1. **C=O Stretching (Carbonyl Group)**: - **Peak around 1700 cm^-1**: The sharp, strong absorption near this frequency is characteristic of the C=O stretching vibration. For acetone, which has a ketone functional group, this peak is typically found around 1715 cm^-1. 2. **C-H Stretching**: - **Peaks between 2900–3000 cm^-1**: These are due to the C-H stretching vibrations of the methyl (CH₃) groups. In acetone, such peaks are often observed in this region. 3. **CH₃ Bending**: - **Peak around 1360 cm^-1**: This is associated with the bending (deformation) modes of the methyl groups. 4. **C-C Stretching**: - **Peaks between 1100–1300 cm^-1**: These peaks are less intense and arise from C-C stretching vibrations within the carbon skeleton of acetone. 5. **CH₃ Rocking**: - **Peaks around 950–1050 cm^-1**: These vibrations correspond to the rocking motion of the methyl groups. When these specific absorptions are observed in an IR spectrum, they confirm the presence of acetone. The most distinguishing feature is the strong C=O stretching peak around 1715 cm^-1, which is a clear indicator of the ketone functional group in acetone.