PSYC 102 Chapter : OLOGY

• School: Southeastern Louisiana University
• Department: Psychology
• Course: PSYC 102
• Professor: All

Document Summary

Ir spectroscopy chapter 2. 15 and 2. 16 organic compound. Ir is used to determine the kinds of functional groups in an. The ir absorptions (4000 to 600 cm-1) correspond to bond vibrations (stretching and bending). 4000 to 1400 cm-1: functional group region (stretching) The intensity of an ir absorption depends on the polarity of the bond (o-h > n-h > c-h) and on the number of bonds. Hookes" law: stronger bonds and lighter atoms give rise to higher frequencies. Superposition of ir spectra gives positive identification of individual compounds (no 2 compounds have identical ir spectra) 1600-1750 medium weak medium medium medium medium strong strong, broad strong, very medium medium to. Match the following compounds with their corresponding ir sprectrum. Nmr is used to identify the carbon-hydrogen framework of an organic compound. 1h and 13c nuclei behave like tiny magnets (have two allowed spin states, +1/2 and -1/2) and interact with an external magnetic field.