Fig. 7. Selected examples of silyl-type stabilized dimetallenes and dimetallynes. 680–84: 6a: E = Si, RSi = i-Pr2MeSi 6b: E = Si, RSi = t-BuMe2Si 6c: E = Si, RSi = i-Pr3Si 6d: E = Si, RSi = t-Bu2MeSi 6e: E = Ge, RSi = i-Pr2MeSi 6f: E = Ge, RSi = t-BuMe2Si 6g: E = Ge, RSi = i-Pr3Si 6h: E = Ge, RSi = t-Bu2MeSi 6i: E = Sn, RSi = t-Bu2MeSi; 785; 869: TMS = SiMe3; 9: 9a10: Si1: R = CH(SiMe3)2 R′ = i-Pr 9b59: Si2: R = Sit-Bu3 R′ = Me.
