Types of Spectroscopy Infrared (IR) spectroscopy measures the bond vibration frequencies in a molecule and is used to determine the functional group Mass spectrometry(MS) fragments the molecule and measures the masses Nuclear magnetic resonance(NMR) spectroscopy detects signals from hydrogen atoms and can be used to distinguish isomers Uitraviolet (UV spectroscopy uses electron transitions to determine bonding patterns. => Chapter 12Chapter 12 3 Types of Spectroscopy • Infrared (IR) spectroscopy measures the bond vibration frequencies in a molecule and is used to determine the functional group. • Mass spectrometry (MS) fragments the molecule and measures the masses. • Nuclear magnetic resonance (NMR) spectroscopy detects signals from hydrogen atoms and can be used to distinguish isomers. • Ultraviolet (UV) spectroscopy uses electron transitions to determine bonding patterns. =>