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ガロカテキンガレートとカフェイン錯体の結晶構造

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ガロカテキンガレートとカフェイン錯体の結晶構造

石津 隆、堤 広之、佐藤 隆、山本英二、城 始勇

Chemistry Letters, 38(3), 230-231 (2009)

Crystal structure of complex of gallocatechin gallate and caffeine

Takashi Ishizu, Hiroyuki Tsutsumi, Takashi Sato, Hideji Yamamoto and Motoo Shiro*

ABSTRACT: A merohedrally twinned crystal of the complex of (–)-gallocatechin gallate and caffeine was prepared in aqueous solution, and X-ray crystallographic analysis was performed. The driving force for the formation of the complex was thought to be mainly the π-π interaction between the B′ ring of GCg and caffeine, the B ring of GCg and caffeine.

抄録 (-)-ガロカテキンガレートとカフェイン錯体のメドヘドラルツイン結晶は水溶液 中で作られ、X線結晶構造解析がなされた。錯体を形成するドライビングフォースは、

主に

GCg

B’

環とカフェイン、B環とカフェインの間の

π-π

相互作用であると考えら れた。

* Rigaku Corporation

  リガク

参照

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