
TY  - JOUR
A1  - Robertson, GB 
A1  - Tucker, PA 
A1  - Wickramasinghe, WA 
T1  - 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)
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1986
VL  - 39
IS  - 10
SP  - 1495
EP  - 1507
KW  - 
UR  - https://doi.org/10.1071/CH9861495 
N2  - 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;. 
ER  -

