CRYSTAL-STRUCTURE OF DIBROMO(ETA(4)-1,5-CYCLOOCTADIENE)-PALLADIUM(II)

The crystal structure of [(eta(4)-C8H12)PdBr2] has been determined by a single crystal X-ray diffraction with R=3.82% for 2 147 independent diffractions. The compound crystallizes with the symmetry of orthorhom bic space group P2(1)2(1)2(1) (No. 19) within the following parameters : a=7.0785(5) Angstrom, b=11.1896(9) Angstrom, c=12.514(1) Angstrom, V =991.2(1) Angstrom(3), Z=4. The square planar arrangement of ligands a round Pd(II) is distorted due to the steric requirements of 1,5-cycloo ctadiene in a twisted boat conformation. Formula units are joined by t he weak C2-H2 ... Br1(1+x, y, z) hydrogen bonds.