Synthesis and Characterization of Heteroscorpionate Rare-Earth Metal Dialkyl Complexes and Catalysis on MMA Polymerization
β Scribed by Zhichao Zhang; Dongmei Cui; Alexander A. Trifonov
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 170 KB
- Volume
- 2010
- Category
- Article
- ISSN
- 1434-1948
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## Abstract Monocationic bisβallyl complexes [Ln(Ξ·^3^βC~3~H~5~)~2~(thf)~3~]^+^[B(C~6~X~5~)~4~]^β^ (Ln=Y, La, Nd; X=H, F) and dicationic monoβallyl complexes of yttrium and the early lanthanides [Ln(Ξ·^3^βC~3~H~5~)(thf)~6~]^2+^[BPh~4~]~2~^β^ (Ln=La, Nd) were prepared by protonolysis of the trisβallyl
The reaction of rare earth silylamides Ln[N(SiHMe 2 ) 2 ] 3 (thf) n performed on the solvent-free, dinuclear yttrium derivative 5 revealed an unusual Β΅ 2 ,Ξ· 4 :Ξ· 1 -coordination of the [n = 1 for Sc (1a); n = 2 for Y (1b), La (1c), Nd (1d)] with trans-1,2-bis(2,4,6-triisopropylbenzenesulfonamido)cyc