Rare-Earth Metal Bis(alkyl)s Supported by a Quinolinyl Anilido-Imine Ligand: Synthesis and Catalysis on Living Polymerization of epsilon-Caprolactone
Data(s) |
2008
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Resumo |
The tridentate ligand N-(2-((2,6-diisopropylphenylimino)methyl)phenyl)quinolin-8-amine (HL) was prepared. Treatment of HL with 1 equiv of Ln(CH2SiMe3)(3)(THF)(2) afforded the corresponding rare-earth metal bis(alkyl) complexes LLn(CH2SiMe3)(2)(THF)(n) (Ln = Sc, n = 0 (1); Y, n = 1 (2); Lu, n = 0 (3)) in high yields. Variable-temperature H-1 NMR spectral analysis showed that these complexes were fluxional at room temperature. Complexes 1 and 3 were THF-free, where the metal center adopted a square-pyramidal geometry, while in 2 the metal center generated a distorted octahedral geometry owing to the coordination of a THF molecule. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Gao W;Cui DM;Liu XM;Zhang Y;Mu Y.Rare-Earth Metal Bis(alkyl)s Supported by a Quinolinyl Anilido-Imine Ligand: Synthesis and Catalysis on Living Polymerization of epsilon-Caprolactone,ORGANOMETALLICS,2008,27(22):5889-5893 |
Palavras-Chave | #RING-OPENING POLYMERIZATION #TRIAZACYCLONONANE-AMIDE LIGANDS #MONOANIONIC ANCILLARY LIGANDS #ETHYLENE-POLYMERIZATION #COMPLEXES BEARING #ALKYL COMPLEXES #HYDRIDE COMPLEXES #TRIMETHYLENE CARBONATE #METHYL COMPLEXES #CYCLIC ESTERS |
Tipo |
期刊论文 |