A tripodal triaminostannate as a metal nucleophile: Synthesis of transition metal-tin heterodimetallic complexes

The coordination capability of the previously reported triamidostannate [Me Si[SiMe2N(4-CH3C6H4)}(3)SnLi(OEt2)] (1) as a precursor for transition metal -tin heterodimetallic complexes is presented. Whereas reaction with CH3I, M e3SiCl, or Me3SnCl yielded the derivatives [MeSi[SiMe2N(4-CH3C6H4)}(3)Sn-R] (R= Me, 2; Me3Si, 3; Me3Sn, 4), demonstrating the nucleophilic properties of the stannate(II), its complexation to transition metal centres was achie ved by halide substitution with [CuCl(PPh3)](4), [CPM(CO)(2)X] (M=Fe, X=Cl; M = Ru, X = Br), [CpM(CO)(3)Cl] (M = Mo, W) and trans(Cl)[RuCl2(bpy)(CO)(2 )] to give [MeSi[SiMe2N(4-CH3C6H4)}(3)Sn-Cu(PPh3)] (5), [MeSi[SiMe2N(4-CH3C 6H4)}(3)Sn-M(CO)(2)Cp (M = Fe: 6; Ru: 7)], [MeSi[SiMe2N(4CH(3)C(6)H(4))}(3) Sn-M(CO)(2)Cp] (M = MO: 8; W: 9) and [(MeSi{SiMe2N(4-CH3C6H4)}(3)Sn)(2)Ru(b py)(CO)(2)] (10), of which 6, 9 and 10 were characterized by X-ray diffract ion.