Organomonophosphines in PtPX3 (X=O, N, Cl, S, I, or Te): structural aspects

Abstract

In this review the structural parameters of 20 mononuclear Pt(II) coordination complexes with an inner coordination sphere of PtPX3 (X=O, N, Cl, S, I or Te) are summarized and analyzed. The P-donor ligands are organomonophosphines. These complexes are crystallized in two crystal systems: monoclinic and triclinic (each ×10). The X-donor ligands are mono-: O, N, C, S, or I; bi-: O/O; N/N; S/S and ter-: N/N/N; S/S/S, or Te/Te/Te-dentate. The mean Pt-X (homo-trans) bond distances elongate in the order: 2.00 Å (O)<2.02 Å (N)<2.302 Å (Cl)<2.325 Å (S)<2.590 Å (Te)<2.638 Å (I). The mean Pt-P (trans to X) bond distances are in the order: 2.218 Å (X=N)<2.230 Å (Cl)<2.233 Å (O)<2.258 Å (I)<2.287 Å (S)<2.308 Å (Te). The chelating ligands form four-, five-, and six-membered metallocyclic rings.

Keywords

• organomonophosphines
• ptpx3
• structures
• trans-influence