Bimetallic rare-earth/platinum complexes ligated by phosphinoamides

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.