Abstract
Abstract The molecular structure of carboxymethylpalladium(triphenylphosphine)pyridine has been determined by X-ray crystal structure analysis of its dichloromethane solvate, [Pd(C2H2O2)(PPh3)(py)]·0.6 CH2Cl2. The crystal belongs to the monoclinic system, space group P21/c, with four formula units in a cell with dimensions of a=8.791(4), b=14.623(7), c=19.862(5) Å, and β=101.53(4)°. R=0.091 for 2806 non-zero reflections. The feature of the structure is that the palladium atom is C,O-chelated by an acetic acid to form a four-membered ring [Pd–C=2.004 (16) and Pd–O=2.093 (11) Å], and the palladium atom has approximately square-planar geometry.
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