Chemistry Letters

Structural requirement for the J-aggregate formation in dicyclohepta [5, 6: b] pyrazino [2, 3-g] quinoxaline-3, 11-diones and related compounds.

H Takeshita, A Mori, T Nagao, T Nagamura

Index: Takeshita, Hitoshi; Mori, Akira; Nagao, Tomohiro; Nagamura, Toshihiko Chemistry Letters, 1989 , p. 1719 - 1722

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Citation Number: 6

Abstract

Two tetrapropyl derivatives of dicyclohepta [5, 6: b] pyrazino [2, 3-g] quinoxaline-3, 11-dione and 9, 11-dipropylcyclohepta [5, 6] pyrazino [2, 3-b] phenazin-10-one, revealed the J-band in cone H 2 SO 4. On the other hand, 2, 3-diphenylcyclohepta [b] pyrazino [2, 3-g] quinoxalin- 9-one formed a non-J-aggregate, but benzo [g] cyclohepta [b] quinoxalin-9-one formed no aggregate. A pyrazinoquinoxaline framework is required for the aggregation.