349654-78-0Relevant academic research and scientific papers
Ti-Sn, Zr-Sn, and Hf-Sn heterodimetallic complexes: Stabilizing unsupported group 4-group 14 metal-metal bonds
Lutz, Matthias,Findeis, Bernd,Haukka, Matti,Pakkanen, Tapani A.,Gade, Lutz H.
, p. 2505 - 2509 (2001)
Reaction of the tripodal amido complexes [MeSi{SiMe2N(4-CH3C6H4)}3 ZrCl] and [MeSi{SiMe2N(4-CH3C6H4)}3 HfCl] with LiSnPh3 in toluene yielded the Zr-Sn and Hf-Sn complexes [MeSi{SiMe2N(4-CH3C6H4)}3 ZrSnPh3] (1) and [MeSi{SiMe2N(4-CH3C6H4)}3 -HfSnPh3] (2), while attempts to synthesize the corresponding Ti-Sn complex resulted in the oxidative coupling of the stannate to give Ph3Sn-SnPh3 and unidentified titanium species. More stable group 4-group 14 complexes were obtained by reaction of the triamido stannate complex [MeSi{SiMe2N(4-CH3C6H4)}3 SnLi(OEt2)] with the metallocene dichlorides [Cp2MCl2] of all three titanium group metals, giving [MeSi{SiMe2N(4-CH3C6H4)}3 SnM(η5-C5H5)2(Cl)] (M = Ti, 3; Zr, 4; Hf, 5). X-ray diffraction studies of 4 and 5 established Zr-Sn and Hf-Sn bond lengths of 3.02313(17) and 2.9956(3) A?, respectively.
