Ask AI: DISCUSS IR SPECTROSCOPY OF Salicylic acid

Infrared (IR) Spectroscopy is a technique frequently used in chemistry to identify molecular structure, notably functional groups in a molecule and helps in the identification and characterization of a compound. Let's talk about the IR spectroscopy for Salicylic Acid (C7H6O3): 1. OH Group (Hydroxyl group): Salicylic Acid contains Carboxylic acid (-COOH) and Phenolic (-OH) groups. The O-H stretch for the carboxylic acid is typically broad and can appear in the region 2500-3300 cm-1 due to strong hydrogen bonding, while the O-H stretching vibration for Phenolic groups will appear in the range 3200-3600 cm-1. 2. COOH Group (Carboxylic Acid group): The C=O stretch appears as a very strong and sharp peak in the region of 1700-1725 cm-1. 3. Aromatic Ring (C=C): The C=C stretching vibrations of the aromatic ring are observed in the region 1600-1500 cm-1 and can have more than one peak due to different types of C=C bonds. 4. C-O Group: The C-O stretch of the phenolic group and the C-O single bond stretch in the carboxylic acid are observed in the region around 1250-1300 cm-1. Remember, the exact position can vary depending on the IR spectrometer and the conditions of the sample such as its physical state, temperature, etc. Always correlate your experimental data with the theoretical values only as an approximate guide. All IR data must be interpreted in conjunction with other available data such as NMR, Mass spectrometry, Elemental analysis, etc. for accurate compound determination.