The preparation, infrared spectra, and magnetic properties of some ruthenium(II), ruthenium(III), and osmium(III) complexes

Abstract

The preparation, i.r. spectra, and magnetic susceptibility data for complexes of the type RuCl₂.4L and MCl₃.3L (M = Ru, L = pyridine, β-picoline, γ-picoline; M = Os, L = pyridine or γ-picoline) and [M(L)₂Cl₂]X_nH₂O (where M = Ru, L = 2,2′-bipyridyl, X = ClO₄, n= O, or X = Cl and n= 2; M = Os, L = 2,2′-bipyridyl or 1,10-phenanthroline, X = ClO₄, n= 0) are reported. The i.r. spectra are discussed in terms of the possible structures of the complexes and the magnetic properties compared with the theory of a ²T_2g ground state perturbed by an axial ligand field component, and spin–orbit coupling.