Chiral Bis-chlorin: Enantiomer Resolution and Absolute Configuration Determination
Organic Letters2005Vol. 7(6), pp. 1015–1018
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Victor Borovkov, Atsuya Muranaka, Guy A. Hembury, Yumi Origane, Г. В. Пономарев, Nagao Kobayashi, Yoshihisa Inoue
Abstract
[structure: see text] A racemic mixture of the ethane-bridged bis(zinc octaethylchlorin) was successfully resolved for the first time to yield two enantiomers that exhibit substantial CD signals in the regions of chlorin B and Q transitions. The absolute configuration of the corresponding enantiomers was assigned and the origin of its high optical activity was rationalized through a combined spectral, crystallographic, and theoretical analysis.
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