THE INFRARED AND RAMAN-SPECTRA OF 4-PHENYLPYRIDINE AND ITS HOFMANN TYPE COMPLEXES

The Infrared and Raman spectra of 4-Phenylpyridine are reported for th e first time in the 4000-400cm-1 range. Vibrational assignments have b een made for fundamental modes on the basis of frequency shifts of coo rdinated ligand, infrared and Raman band contours and comparison with the assignments for related molecules. The infrared spectra of M (4-Ph enylpyridine) Ni(CN)4 complexes (M=Mn, Ni or Cd) are reported. Their s tructure consists of polymeric layers of [M-Ni(CN)4]infinity with the 4-phenylpyridine molecules bound to metal (M), similar to the structur e found in Hofmann type host complexes.