Pd(II), Pt(II), Rh(III), Ir(III) and Ru(III) Complexes of n-Pentyl and n-Hexyl Ketone Thiosemicarbazones

Abstract

Pd(II), Pt(II), Rh(III), Ir(III) and Ru(III) complexes of thiosemicarbazones of methyl-n-hexylketone and methyl-n-pentylketone have been prepared and characterised by elemental analyses, magnetic moments, i.r. and electronic spectral studies. These complexes were found to have the compositions M(ligand)₂Cl₂ (M = Pd or Pt) and M(ligand)₃Cl₃ (M = Rh, Ir and Ru). All the complexes are diamagnetic except Ru(ligand) ₃C1₃. The Pd(II) and Pt(II) complexes are of square planar geometry. Rh(III), Ru(III) and Ir(III) complexes are six-coordinate octahedral. Various ligand field parameters have been calculated and discussed.