Palladium(II) complexes of N2O2 and N2S2 ligands: Syntheses and X-ray crystal structures

Article abstract of DOI:10.1007/BF01185542

Palladium(II) complexes of an imine-thiophene ligand N,N' bis(1-methylenethiophene)-1,3-diaminopropane and an amine-phenol ligand N,N'-bis(2-hydroxybenzyl)1,3-diamino-2,2-dimethylpropane were synthesized by reacting K2PdCl4 with alcoholic solutions of the ligands.X-ray structures of the complexes were determined using data from a CAD-4 Nonius diffractometer (MoKα radiation).The structures were solved by conventional methods resulting in R factors of 0.044 and 0.061 using 1841 and 2241 independent reflections, respectively.Crystal data: Complex I, orthorhombic, space group Pbca, a=11.323(2), b=14.819(2), c=23.873(3) Angstroem, V=4006(1) Angstroem³, Z=8.Complex II: Space group P2₁/c, a=9.169(2), b=31.920(4), c=8.902(6), β=90.38(2) deg, V=2605(1) Angstroem³, Z=4.Both complexes showed coordination of the ligands through the nitrogens only while the sulphur and the oxygen atoms were uncoordinated.Square planar coordination is completed by cis chloro ligands.