PALLADIUM(II) AND PLATINUM(II) COMPLEXES OF RHODANINE AND 3-METHYLRHODANINE

The following palladium(II) and platinum(ll) complexes of rhodanine (HRd) and 3-methylrhodanine (MRd) have been prepared: Pd(HRd)1.5Cl2, Pd(HRd)2Br2, Pd(HRd)2Br2 · 0.25 EtOH, M(MRd)2X2 [M = Pd, X = Cl (0.25 EtOH) or Br; M = Pt, X = Cl or Br], Pd(MRd)3Br2, and M(MRd)4(ClO4)2 (M = Pd or Pt). The ligands are coordinated to the metal through the thiocarbonylic sulphur atom. Pd(HRd)1.5Cl2 has presumably a structure such as[Figure not available: see fulltext.] (X = Cl or Br) complexes have a trans-planar coordination. Pd(MRd)2X2 (X = Cl or Br) complexes are cis-planar coordinated. Pd(MRd)3Br2 has presumably a square coordination with two MRd molecules and two CI ions cis-coordinated in the equatorial plane, and a MRd molecule and a Cl ion weakly bonded in apical position. The M(MRd)4(ClO4)2 complexes have square planar coordination. © 1979 Verlag Chemie, GmbH.