Bridging selenocarbonyl ligands

Abstract

Novel bis(isoselenocarbonyl) complexes [W2Pt(μ-CSe)2(CO)4(L2)(Tp∗)2] (L2 = cyclooctadiene, norbornadiene) eliminate the diene upon heating to provide [W2Pt(μ-CSe)2(CO)4(Tp∗)2], in which the CSe ligands close to bridge W-Pt bonds in a σ-π mode that may be re-opened by addition of new ligands (CNR: R = tBu, C6H2Me3) to re-establish the isoselenocarbonyl coordination in [W2Pt(μ-CSe)2(CO)4(CNR)2(Tp∗)2]. Show more