Author:

Keywords:

Science & Technology, Physical Sciences, Chemistry, Physical, Physics, Atomic, Molecular & Chemical, Chemistry, Physics, 02 Physical Sciences, 03 Chemical Sciences, 10 Technology, Chemical Physics, 34 Chemical sciences, 51 Physical sciences

Abstract:

The Raman spectra of molecular complexes of Br2 with some substituted pyridine derivatives (H, 4-CH3, 4-C2H5, 2-C2H5, 2,4-diCH3, 2,4,6-triCH3) have been studied in CH2Cl2 at 24°C. Raman spectroscopy provides a suitable method to calculate the formation constants. For all the studied complexes, the νBrBr band shows an intensity enhancement, the intensification factor lying between 7 and 10. The depolarization factor (ρ{variant}) of the νBrBr vibration does not markedly change with complexation but the ρ{variant} factor of the ring breathing vibration of the pyridine derivative strongly increases through complexation. © 1976.