Chemistry of metal hydrides. VI. Cationic platinum(II) carbonyls stabilized with tertiary arsines and stibines

Publisher Website
Google Scholar
Abstract
The synthesis of [Pt2Cl2(R3M)4][BF4]2, and its cleavage with carbon monoxide to form the cationic carbonyl species [PtCl(CO)(R3M)2]+ is described for R = ethyl or phenyl, and M = As or Sb. A comparison of the physical properties and spectroscopic data of these compounds, and the analogues for M = P is made with related complexes of other transition metals.Only trans-[PtCl(CO)(Et3As)2][BF4] reacts with water to give trans-[PtHCl(Et3As)2] and carbon dioxide. trans-[PtCl(CO)(Ph3As)2][BF4] reacts readily with methanol or ethanol to give an alkoxy carbonyl [PtCl(COOR)(Ph3As)2], where R = CH3 or C2H5. Unlike their phosphine analogues, these species and the stibine-stabilized cationic carbonyls do not produce the corresponding hydrides on reaction with water in the presence of a salt catalyst. These differences in chemical reactivity are related to the basicity of the ligands.

This publication has 0 references indexed in Scilit: