Abstract
The title compound, [Pb(C11H16O2PS2)2], is a neutral four-coordinate mononuclear complex with a distorted square-pyramidal geometry of the PbS4 core. The apical PbII atom of each pyramid is 1.33059 (3) Å above the basal S4 plane. The metal atom is surrounded by two chelating dithiophosphonate ligands binding through the S-donor atoms. The ligands are anisobidentate as the pyramid is comprised of Pb—S bond lengths that vary substantially [2.6999 (7), 2.7128 (6), 2.8877 (7) and 2.9472 (7) Å], clearly indicating two short and two longer bond lengths. The P—S bond lengths are also paired as shorter [1.9959 (9) and 1.9877 (8) Å] and slightly longer [2.0115 (9) and 2.0245 (9) Å], indicating an anisobidentate nature of the ligand whereby the shorter P—S bond has more double-bond character than the other. The S—Pb—S (chelating) bond angles range from 71.841 (18) to 72.692 (19)°, whilst the Pb—S—P bond angles range from 84.70 (3) to 90.51 (3)°.
Highlights
The title compound, [Pb(C11H16O2PS2)2], is a neutral fourcoordinate mononuclear complex with a distorted squarepyramidal geometry of the PbS4 core
The metal atom is surrounded by two chelating dithiophosphonate ligands binding through the S-donor atoms
The ligands are anisobidentate as the pyramid is comprised of Pb—S bond lengths that vary substantially [2.6999 (7), 2.7128 (6), 2.8877 (7) and 2.9472 (7) A ], clearly indicating two short and two longer bond lengths
Summary
The apical PbII atom of each pyramid is 1.33059 (3) Aabove the basal S4 plane. The metal atom is surrounded by two chelating dithiophosphonate ligands binding through the S-donor atoms. The ligands are anisobidentate as the pyramid is comprised of Pb—S bond lengths that vary substantially [2.6999 (7), 2.7128 (6), 2.8877 (7) and 2.9472 (7) A ], clearly indicating two short and two longer bond lengths. The P—S bond lengths are paired as shorter [1.9959 (9) and 1.9877 (8) A ] and slightly longer [2.0115 (9) and 2.0245 (9) A ], indicating an anisobidentate nature of the ligand whereby the shorter P—S bond has more double-bond character than the other. The S—Pb— S (chelating) bond angles range from 71.841 (18) to 72.692 (19), whilst the Pb—S—P bond angles range from 84.70 (3) to 90.51 (3)
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