Synthesis and structural characterization of Palladium(II) complex bearing N-Heterocyclic Carbene

Trcitts-Bis[1,3-bis(2,4-dimethylphenylimidazolidin-2-ylidene)]dichloropalladium(II), 4, was prepared from 1,3-bis(2,4-dimetilphenyl)imidazoliniumchloride. The crystal and molecular structure of 4 have been determined by single crystal X-ray diffraction. The title compound, C38H44N4PdCl2, crystalizes in the monoclinic space group P 21/n with a = 13.8713(9) angstrom, b = 12.1365(6) angstrom, c = 21.5499(15) angstrom The Pd atom has a slightly distorted square planar coordination geometry. The molecules of the title compound are I inked by C-H center dot center dot center dot Cl weak hydrogen bonds into two-dimensional sheets parallel to the (001) plane. In addition, the title compound was characterized by elemental analyses and NMR spectroscopy.