Palladium(II) complexes of N2O2 and N2S2 ligands: Syntheses and X-ray crystal structures
作者:M. R. A. Pillai、C. L. Barnes、C. S. John、D. E. Troutner、E. O. Schlemper
DOI:10.1007/bf01185542
日期:1993.12
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)l,3-diamino-2,2-dimethyl-propane were synthesized by reacting K2PdCl4 with alcoholic solutions of the ligands. X-ray struc ures of the complexes were determined using data from a CAD-4 Nonius diffractometer (Mo K alpha 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)A, V=4006(1)Angstrom(3), Z=g. Complex III Space group P2(I)/c, a=9.169(2), b=31.920(4), c=8.902(6), beta=90.38(2)degrees, V=2605(1)Angstrom(3). 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.