Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 5 (May 2013)

metal-organic compounds

Acta Cryst. (2013). E69, m288-m289    [ doi:10.1107/S160053681301088X ]

cyclo-Tetra­kis([mu]2-D-penicillaminato-[kappa]4N,S:O,S)tetra­palladium(II) 9.75-hydrate

A. Yokoi, N. Yoshinari and T. Konno

Abstract: The asymmetric unit of the title compound, [Pd4(C5H9NO2S)4]·9.75H2O, contains two neutral tetranuclear complex molecules with similar conformations and 19.5 solvent water mol­ecules. Of the 21 independent water molecules, three exhibit an occupancy of one-half. In each tetranuclear complex molecule, the four PdII atoms have a square-planar coordination environment and are spanned by four D-penicillaminate ligands in a [kappa]4N,S:S,O coordination mode, forming an eight-membered Pd4S4 metallacycle. In the crystal, two tetra­nuclear mol­ecules are connected to each other through eight N-H...O hydrogen bonds between amine and carboxyl­ate groups, constructing a cylindrical dimer. The dimers are further hydrogen-bonded with the solvent water mol­ecules, completing a three-dimensional network.

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