title: Trans-bis(3,5-diaza-1-azonia-7-phosphaadamantane-kappaP)bis(thiocyanato-kappaS)palladium(II) bis(thiocyanate).
abstract: The crystal structure of the title compound, trans-[Pd(NCS)(2)(C(6)H(13)N(3)P)(2)](NCS)(2), is one of the few palladium(II) complexes containing two protonated water-soluble 1,3,5-triaza-7-phosphaadamantane (PTA) ligands reported to date. The compound displays a distorted square-planar geometry, with the Pd atom on an inversion centre and with the S atoms of the thiocyanate counter-ions occupying the axial positions above and below the equatorial plane described by the phosphine and thiocyanate ligands. Geometric parameters for the formal coordination polyhedron include a Pd--P distance of 2.2940 (8) A, a Pd--S distance of 2.3509 (8) A and a P--Pd--S angle of 89.45 (3) degrees. The effective cone angle for the PTA ligands was calculated as 114.5 degrees.
authors.affiliation: Department of Chemistry, University of the Free State, PO Box 339, Bloemfontein 9300, South Africa.
authors.forename: Anna M M
authors.initials: AM
authors.lastname: Meij
authors.forename: Stefanus
authors.initials: S
authors.lastname: Otto
authors.forename: Andreas
authors.initials: A
authors.lastname: Roodt