Molecular Ln(III)−H−E(II) Linkages (Ln=Y, Lu; E=Ge, Sn, Pb)

Following the alkane‐elimination route, the reaction between tetravalent aryl tintrihydride Ar*SnH(3) and trivalent rare‐earth‐metallocene alkyls [Cp*(2)Ln(CH{SiMe(3)}(2))] gave complexes [Cp*(2)Ln(μ‐H)(2)SnAr*] implementing a low‐valent tin hydride (Ln=Y, Lu; Ar*=2,6‐Trip(2)C(6)H(3), Trip=2,4,6‐triisopropylphenyl). The homologous complexes of germanium and lead, [Cp*(2)Ln(μ‐H)(2)EAr*] (E = Ge, Pb), were accessed via addition of low‐valent [(Ar*EH)(2)] to the rare‐earth‐metal hydrides [(Cp*(2)LnH)(2)]. The lead compounds [Cp*(2)Ln(μ‐H)(2)PbAr*] exhibit H/D exchange in reactions with deuterated solvents or dihydrogen.