Spectroscopy Assignment 1: Interpreting IR and NMR Spectra Analysis

This assignment solution presents a detailed analysis of four unknown compounds using Infrared (IR) and 1H Nuclear Magnetic Resonance (NMR) spectroscopy. The student meticulously identifies diagnostic bands in the IR spectra, including C=O stretches, C-H stretches, and C-O bending, and labels peaks in the NMR spectra, such as CH3, NH2, and aromatic-H signals. The assignment also includes a structural proposal for a compound with a given molecular formula (C7H7NO2), utilizing both IR and NMR data to identify functional groups and proton environments. Furthermore, the solution addresses questions regarding chemical shifts in NMR spectra, explaining the influence of electronegativity and anisotropic effects. The provided references support the analysis of the spectra and the conclusions about the compounds.