The present work describes the synthesis and spectral properties of some platinum metals chlorides coordination compounds of 4[N-(-(furan-2'-carboxalidene)amino]antipyrine thiosemicarbazone (FFAAPTS) and 4[N-(3,4,5'-trimethoxybenzalidene)amino]antipyrine thiosemicarbazone (TMBAAPTS). All the compounds have the general composition MCl2(L) (M = Pd2+ or pt(2+); L = FFAAPTS or TMBAAPTS) or MCl3(L) (M = Ru3+, Rh3+ or Ir3+; L = FFAAPTS or TMBAAPTS). All the complexes were characterized by elemental analyses, molar conductance, molecular weight, magnetic measurements, and infrared and electronic spectra. The infrared spectra suggest that both the thiosemicarbazones behave as neutral tridentate (N,N,S) ligands. The magnetic and electronic spectra suggest that Pd2+ and Pt2+ complexes are square planar, while Ru3+, Rh3+ and Ir3+ complexes have octahedral geometry.