Fourier transform infrared and Raman spectra of metal halide complexes of 3,5-lutidine in relation to their structures

Yurdakul S., Akyuz S., Davies J.

SPECTROSCOPY LETTERS, cilt.29, ss.175-183, 1996 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 29 Konu: 1
  • Basım Tarihi: 1996
  • Doi Numarası: 10.1080/00387019608001593
  • Sayfa Sayıları: ss.175-183


Fourier transform infrared (4000-200 cm(-1)) and Raman (3500-50 cm(-1)) spectra are reported for metal(II) halide 3,5-lutidine (3,5-dimethylpyridine) complexes of the following stoichiometries: M(3,5L)(4)X(2) M=Co or Ni, X=Cl or Br; M=Mn or Cu, X=Br; M=Cd, X=I; M(3,5L)(3)X(2) M=Fe, X=Cl; M=Cu, X=Br; Hg(3,5L)X(2) X=Cl or Br. Vibrational assignments are given for all the observed bands. Some structure-spectra correlations are found. For a given series of isomorphous complexes the sum of the difference between the liquid and ligand values of the vibrational modes of 3,5-lutidine is found to increase in the order of the second ionization potentials of the metals. The frequency shifts are also found to depend on the halogen.