Crystal and Molecular Structure of Di-μ-chloro-bis(π-1-ethoxycarbonyl-2-hydroxyallyl)dipalladium(II)

Abstract

Abstract The crystal and molecular structures of di-μ-chloro-bis-(π- 1-ethoxycarbonyl-2-hydroxyallyl)-dipalladium, (C6H9O3PdCl)2 have been determined from the three-dimensional data. The crystals are triclinic; space group Pl; with one dimeric molecule per unit-cell; a=4.80, b=10.31, c=10.64 Å, α=117.4, β=102.3, and γ=84.1°. The final discrepancy index is 14.0% for 1208 reflections. The two palladium atoms are joined by two chlorine bridges to form a square planar arrangement. The molecule possesses a center of symmetry which coincides with a crystallographic center of symmetry in the crystal; the overall coordination scheme of the palladium atom is similar to that established for the π-allyl palladium chloride dimer. The dihedral angle between the plane of four atoms [Pd, Pd′, Cl, and Cl′] and the π-allyl plane is 108. There are intermolecular hydrogen-bonds between the enolic hydroxyl group of one molecule and the carbonyl-group of the other molecule related by the center of symmetry.