Synthesis and crystal structure of chiral bis(cyclopentadienyl) samarium Schiff base complexes bearing intramolecular CC bond formation and hydrogen transfer

SmCl 3 reacted with CpNa (Cp = Cyclopentadienyl) in the ratio of 1 : 3 in THF, which then was reacted with ( S)−(+)- N-1-(phenylethyl)salicylideneamine/toluene to yield the title complex, ▪ The X-ray crystal structure determination of the title complex reveals that 1 is a dimer with intramolecular C...

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Bibliographic Details
Published in:Polyhedron 1998, Vol.17 (13), p.2327-2330
Main Authors: Liu, Qiancai, Ding, Mengxian, Lin, Yonghua, Xing, Yan
Format: Article
Language:English
Subjects:
chirality
crystal structure
CC bond formation
hydrogen transfer
samarocene complex
Schiff base
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Summary:SmCl 3 reacted with CpNa (Cp = Cyclopentadienyl) in the ratio of 1 : 3 in THF, which then was reacted with ( S)−(+)- N-1-(phenylethyl)salicylideneamine/toluene to yield the title complex, ▪ The X-ray crystal structure determination of the title complex reveals that 1 is a dimer with intramolecular CC bond formation and hydrogen transfer, which leads to the configuration turnover of the carbon atom at the benzyl position of the ligand, while those of the newly formed asymmetric centers may have either R or S type configurations.
ISSN:0277-5387
DOI:10.1016/S0277-5387(97)00511-1