Synthesis and characterization of the Lewis acid-base complexes SbCl5 center dot LB (LB = ICN, BrCN, ClCN, (1)/(2) (CN2), NH2CN, pyridine) - a combined theoretical and experimental investigation. The crystal structures of SbCl5 center dot NCCl and SbCl5 center dot NCCN center dot SbCl5

The Lewis acid-base complexes SbCl5. LB (LB = ICN, BrCN, ClCN, 1/2(CN)(2), NH2CN, pyridine) were prepared. The products formed were characterized by R aman and NMR spectroscopy. Density functional theory (B3LYP) was applied to calculate structural and vibrational data. Vibrational assignments of the normal modes for these Lewis acid-base adducts was made on the basis of the ir Raman spectra in comparison with computational results. The stability of the complexes was investigated by calculating the bond dissociation enthal py. SbCl5. NCCl and SbCl5. NCCN . SbCl5- were characterized by X-ray struct ural analysis. NBO analyses were performed on the crystallographic data.