Orthorhombic and monoclinic allotropes of cis-[PtCl2(PMePh2)2], cis-dichlorobis(methyldiphenylphosphine)platinum(II): structure analyses

Pyridine-2-thionate as a versatile ligand in Pd(ii) and Pt(ii) chemistry: the presence of three different co-ordination modes in [Pd2(μ2-S,N-C5H4SN)(μ2-κ2S-C5H4SN)(μ2-dppm)(S-C5H4SN)2]

“…It is not possible to compare 6 with the transdichlorobis(methyldiphenylphosphine)platinum(II) because only the cis isomer is referenced in the literature. 48 The Pt-S distances are in the range of platinum pyridin-2-thionate complexes. 20,21,32 Complex trans-[Pt(S-C 5 H 4 SN) 2 (PPh 2 Me) 2 ] (6) can be obtained in higher yield (82%) by addition of NaC 5 H 4 SN in a 2 : 1 molar ratio, under an inert atmosphere, to a suspension of [PtCl 2 (PPh 2 Me) 2 ] in absolute ethanol.…”

cis-Dichloridobis(ethyldiphenylphosphine-κP)platinum(II)

“…The platinum atom is 0.0556 (4) Å above the square plane. The structure is similar to that of [(MePh 2 P) 2 PtCl 2 ] (Ho et al, 1982). The square planar geometry is characteristic of complexes having less bulky tertiary phosphines.…”

“…For the related cis-dichloridobis(methyldiphenylphosphine)platinum(II), see Ho et al (1982). For related literature, see: Domań ska-Babul et al (2007); Krautscheid et al (1997); Porzio et al (1980).…”

cis-Dichloridobis(diethylphenylphosphine-κP)platinum(II)

“…et al, 1980). The bond angle P1-Pt-P2 of 94.43 (4)° indicates steric repulsion of the PhEt 2 P groups smaller than those observed for the EtPh 2 P groups in [(EtPh 2 P) 2 PtCl 2 ] (100.23 °) and for the MePh 2 P groups in [(MePh 2 P) 2 PtCl 2 ] (98.11 °; Ho et al, 1982). The average Pt-P and Pt-Cl distances of 2.253 (13) Å and 2.356 (12) Å respectively are typical for [cis-(R 3 P) 2 PtCl 2 ] complexes.…”

“…For the structure of the related cis-dichloridobis-(ethyldiphenylphosphine-P)platinum(II) compound, see: Domanska-Babul, . For related literature, see: Chojnacki et al (2007); Domanska-Babul, ; Ho et al (1982); Matern et al (2000); Porzio et al (1980).…”