Abstract
The stereochemistry of lead(II) complexes with S- and Se-donor atom ligands, including mixed ligand complexes is reviewed with respect to the geometry of the first coordination sphere of the Pb(II) atom in these compounds and rationalized in terms of the valence shell electron-pair repulsion (VSEPR) model. The most comprehensively structurally characterized classes of lead(II) thio and seleno complexes are discussed, including monothio-, dithio(seleno)-, trithio- and tetrathio-complexes, as well as Pb(II) dialkyldithio(seleno)carbamates, alkylxanthates and dialkyl(aryl) phosphorodithio(seleno)lates. Data about the polyhedral shape of the primary coordination sphere, coordination number (CN), bond lengths (primary and secondary) and bond angles of the Pb(II) atom in the compounds under investigation are systematized in comprehensive tables. The particularities of the stereochemistry of Pb(II) complexes with S(Se)-donor atom ligands are comparatively discussed with the stereochemistry of lead(II) complexes with oxygen donor ligands.
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