trans-Dichloridobis[dicyclohexyl(4-isopropylphenyl)phosphane-κP]platinum(II) acetone monosolvate

Abstract

The title compound, [PtCl2(C21H33P)2]·C3H6O, crystallizes with an accompanying acetone solvent mol­ecule. The metal atom shows a distorted square-planar coordination environment, with a P—Pt—P angle of 172.41 (3)° as the most prominent feature. Both isopropyl fragments were treated as disordered over two conformations with occupancy ratios of 0.55 (2):0.45 (2) and 0.58 (2):0.42 (2). The solvent mol­ecule was also disordered over two orientations in a 1:1 ratio. The crystal studied was a non-merohedral twin with a twin component of 32.4%.

Dicyclohexyl(4-isopropylphenyl)phosphane selenide

“…The cone angle was found to be 170° when the Se-P distance was adjusted to 2.28 Å (the default value from Tolman, 1977). This value is ca 5° larger than previous reported values where the present phosphine was bonded to a transition metal centre (Makhoba et al, 2011;Vuba & Muller, 2012). This indicates to some extend the flexibility of this phosphine ligand and its ability to use space to enable less…”

“…For background studies aimed at understanding the transition metal-phosphorus bond, see: Muller et al (2008); Roodt et al (2003). For transition metal complexes with PCy 2 (4-i Pr-C 6 H 4 ), see: Makhoba et al (2011); Vuba & Muller (2012). For background to cone angles, see: Tolman (1977).…”