Crystal structure of mixed-ligand copper(II) complexes. Bis(2,2′-bipyridyl)monophenylphos-phatocopper(II)monophenylphosphate monohydrate, [Cu(C10H8N2)2(C6H5OPO3)]-(C6H5OPO3H2)(H2O)

The title mixed-ligand copper(II) complex has been synthesized and its crystal structure at room temperature solved. The crystals are monoclinic:P2₁/c,a=12.004(3),b=19.402(5),c=14.192(4) Å,=108.80(3)°,Z=4. The structure was solved by direct methods, and refined to anR value of 0.041 for 4457 nonzero independent reflections. The crystal structure consists of discrete [Cu(bipy) (MPhP)] units, noncoordinated MPhPH₂, and H₂O molecules. Each [Cu(bipy)₂(MPhP)] unit involves a five coordinate CuN₄O chromophore with a distorted trigonal-bipyramidal stereochemistry. The phosphate groups are linked together by short hydrogen bonds of (P)-O-H--O-P type.