Syntheses and 31P NMR Studies of Transition Metal Complexes Containing Derivatives of Dioxaphospholane and Dioxaphosphorinane

Abstract

The syntheses of various complexes of Pt(II), Pt(0) and Pd(II) with 2-chloro-1,3,2-dioxaphospholane, 2-fluoro-1,3,2-dioxaphospholane, 2-chloro-4,5-benzo-1,3,2-dioxaphospholane, 2-fluoro-4,5-benzo-1,3,2-dioxaphospholane,2-chloro-1,3,2-dioxaphosphorinane,2- fluoro-1,3,2-dioxaphosphorinane are reported. 31P{1H} NMR studies of these complexes reveals some aspects still unexplored in terms of the magnitude of the coupling constants 1J(PtP), which brings light to the soft and hard acid-base concept. This work also shows the 31P{1H} nmr spectroscopic differences between cis and trans isomers.