
%0 Journal Article
%A Robertson, GB 
%A Tucker, PA 
%A Wickramasinghe, WA 
%T Steric Modification of M-P Bond Lengths: Crystal and Molecular-Structures of the Platinum(II) Complexes <I>trans</I>-(PPr<sup>I</sup><sub>3</sub>)<sub>2</sub>Cl<sub>n</sub>H<sub>2-n</sub>Pt<sup>II</sup> (N = 0-2)
%J Australian Journal of Chemistry
%D 1986/10/01
%V 39
%N 10
%P 1495-1507
%K 
%R https://doi.org/10.1071/CH9861495
%U https://www.publish.csiro.au/paper/CH9861495 
%X Crystal structure analyses of the square-planar platinum complexes trans-(PPri3)2ClnH2-nPtII(n = 0-2) (C), (B), (A) are described. Diffraction data were recorded at room temperature with a Picker FACS-1 diffractometer. Convergence R values, for reflection numbers given in parentheses, are 0.020 (2373), (A), 0.021 (5771), (B) and 0.018 (1982), (C). The ligand conformation about the Pt-P bonds is perpendicular for (A) and (B) and eclipsed for (C). The Pt-P distances decrease systematically with increasing hydride content [2.339(1)&#506;, (A); 2.286(1)&#506;, (B); 2.252(1)&#506;, (C)]. The decrease reflects the low steric requirement of hydride vis a vis chloride ligands and concomitant changes in anionic ligand/phosphine  substituent non-bonding interactions. The trans-bond lengthening of the Pt- Cl bond in (B)(due to trans hydride) is 0.092(1)&#506;. 
