The molecular structure of a 2-aryl-1,3,2-dioxaphospholane and its coordination behaviour towards platinum(II) species; molecular structures of four platinum(II) complexes

Abstract

The molecular structure of the 2-aryl-1,3,2-dioxaphospholane, 2,6-(CF 3) 2-C 6H 3-P(OCH 2) 2 ( 1), has been determined by single-crystal X-ray diffraction at 120 K. Its reactions with the platinum(II) dimers trans-[PtCl(μ-Cl)(PEt 3)] 2, trans-[PtCl(μ-Cl)(PPh 2Me)] 2, trans-[PtCl(μ-Cl)(PPhMe 2)] 2 and trans-[PtBr(μ-Br)(PEt 3)] 2 have been investigated using 31P NMR solution-state spectroscopy. Monomeric trans- and cis-Pt(II) complexes were formed; the molecular structures of cis-[PtCl 2(L)(PR 2R′)] (R R′ Et ( 3), R Ph, R′ Me ( 7)), cis-[PtBr 2L(PEt 3)] ( 9) and cis-[PtCl 2L 2] ( 10), where L = 2,6-(CF 3) 2-C 6H 3-P(OCH 2) 2, have been ascertained at 120 K.