Acetanilide, also known as N-phenylacetamide, is an organic compound that is derived from aniline. It is a white crystalline solid that has a faint odor. Acetanilide is commonly used in the production of dyes and pharmaceuticals. In this article, we will discuss the IR spectrum for acetanilide.
What is IR Spectrum?
IR spectrum stands for infrared spectrum. It is a type of spectroscopy that uses infrared light to determine the functional groups present in a molecule. Infrared light has a wavelength longer than visible light, and it causes the molecules to vibrate. The IR spectrum shows the absorption of infrared radiation by different functional groups in the molecule.
How to Interpret IR Spectrum for Acetanilide?
The IR spectrum for acetanilide shows the absorption of infrared radiation by the various functional groups present in the molecule. The carbonyl group (C=O) absorbs at around 1690-1700 cm-1. The N-H bending vibration absorbs at around 1550-1650 cm-1. The C-H bending vibration absorbs at around 680-850 cm-1.
The IR spectrum for acetanilide also shows the presence of the N-phenyl group. The C-H stretching vibration of the N-phenyl group absorbs at around 2900-3100 cm-1. The C-C stretching vibration of the N-phenyl group absorbs at around 1480-1580 cm-1.
Application of IR Spectrum for Acetanilide
The IR spectrum for acetanilide is used to identify the functional groups present in the molecule. It is also used to determine the purity of the sample. The IR spectrum can be used to compare the experimental spectrum with the theoretical spectrum to verify the identity of the compound.
Conclusion
In conclusion, the IR spectrum for acetanilide shows the absorption of infrared radiation by the various functional groups present in the molecule. The absorption peaks can be used to identify the functional groups and determine the purity of the sample. The IR spectrum is an important tool for the analysis of organic compounds.