Bimetallic rare-earth/platinum complexes ligated by phosphinoamides

Abstract

The heterometallic early-late 5d/4f binuclear phosphinoamido Ln/Pt(0) complexes [(Ph₂PNHPh)Pt{μ-(Ph₂PNPh)}₃Ln(μ-Cl)Li(THF)₃] (Ln = Y (1a), Lu (1b)) were obtained by reaction of [Li(THF)₄][(Ph₂PNPh)₄Ln] (Ln = Y, Lu) with the Pt(0) complex [Pt(tBu₃P)₂] in the presence of LiCl. In the absence of LiCl the corresponding Ln/Pt(0) complexes [(Ph₂PNHPh)Pt{μ-(Ph₂PNPh)}₃Ln{η²-(Ph₂PNPh)}][Li(THF)₄] (Ln = Y (2a), Lu (2b)) were isolated. Both kind of complexes decompose in solution. The Pt(0) complex [Pt(Ph₂PNHPh)₄] (3) was identified as one of these decomposition products.