posted on 2020-04-03, 15:08authored byMichaela Kilian, Hubert Wadepohl, Lutz H. Gade
Reaction of the lithium stannate MeSi{SiMe2N(3,5-xyl)}3SnLi(OEt2) (1) with 1/2 molar equiv of [RhCl(COD)]2 gave
the zwitterionic heterodinuclear complex [MeSi{SiMe2N(3,5-xyl)}2Sn{SiMe2N(η6-3,5-xyl)}Rh(COD)] (2), in which one of the
peripheral N-bonded 3,5-xylyl groups acts as an η6-aryl ligand
to which the {Rh(COD)}+ cation is bonded. Reaction of the
18-electron complex 2 with nucleophiles leads to an attack at
the late transition element, which moves over to the tin atom
to form the Rh−Sn-bonded 16-electron complexes [MeSi{SiMe2N(3,5-xyl)}3SnRh(L)(COD)] (L = Ph3P (3), (PhO)3P (4),
CyNC (5)).