Crystal and Molecular Structures Of Two Complexes of Diphenyl(2-pyridyl)phosphine (L): and

Article abstract of DOI:10.1039/DT9820000207

The reaction of the ligand diphenyl(2-pyridyl)phosphine (L) with HAuCl4 and AgCl affords the complexes and respectively.The crystal structures of these two complexes have been determined from fourcircle diffractometer data; is orthorombic, space group Pnma, with a=11.774(3), b=12.617(3), and 11.114(6) Angstroem, Z=4, and R=0.052 for 1358 observed reflections; is monoclinic, space group P2₁/c with a=14.599(3), b=18.388(5), and c=21.134(4) Angstroem, β=125.12(1) deg, Z=4, and R=0.060 for 5180 observed reflections.In the gold complex the phosphorus of L alone is bonded to the gold atom which assumes a linear geometry with Au-Cl 2.286(4) Angstroem and Au-P 2.234(4) Angstroem.The silver complex contains molecules in which two silver atoms are held together by two chloride bridges.One of the silver atoms is bonded to two L molecules through the phosphorus atom, while the other silver atom is bonded to a L molecule as well as loosely bonded to the nitrogen atom of one of the ligands co-ordinated to the first silver atom.The silver atoms assume a tetrahedral co-ordination with Ag-Cl 2.701(4), 2.618(8), 2.638(4), and 2.601(9) Angstroem; Ag-P 2.432(3), 2.436(4), and 2.452(3) Angstroem; and Ag-N 2.451(9) Angstroem.

Full text of DOI:10.1039/DT9820000207

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