ChemInform Abstract ((I): space group Pbca, Z = 8; (IIa) and (IIIa): C2/c, Z = 8 and 4; (IIb): P21/n, Z=4; (IIIb): Cc, Z=4).

No abstract

No abstract

No abstract

The reactions of 2-N,N-dimethylamino-ethylene-imino-functionalized indolyl proligand 2-(Me 2 NCH 2 CH 2 N = CH)C 8 H 5 NH (HL) with [(Me 3 Si) 2 N] 3 RE(μ-Cl)Li(THF) 3 in toluene afforded a series of rare-earth metal amido complexes [κ 3 -(N,N,N)-2-(Me 2 NCH 2 CH 2 N = CH)C 8 H 5 N]RE[N(SiMe 3 ) 2 ] 2 (RE = Y (1a), Nd (1b), Sm (1c), Gd (1d), Dy (1e), Er (1f), and Yb (1g)). While the reaction of HL with [(Me 3 Si) 2 N] 3 Eu(μ-Cl)Li(THF) 3 produced the europium(II) complex in a dimeric form [{(η 5μ-η 1 :η 2), which is believed to have happened through the homolysis of the Eu−N bond. Further reaction of complex 1a with PhCH�NPh provided an unexpected rare-earth metal complex [κ 2 -(N,N)-PhN{PhCH(CH 2 SiMe 2 )}N(SiMe 3 )]YL (7) through the sp 3 C−H bond activation of the methyl on the silicon atom to form a Y−C bond followed by the insertion of the C�N bond of the imine PhCH�NPh to form an amido group connected to the central metal. All complexes were characterized by spectroscopic methods, elemental analyses, and single-crystal X-ray diffraction, and complexes 1a−1c and 7 were additionally characterized by NMR spectroscopy. The catalytic performance of complexes 1a−1g for the hydrosilylation of imines was investigated, and the catalytic mechanism was proposed based on the experimental results.