Photoinduced intramolecular charge transfer to meta position of benzene ring in 6-aminophthalides

J Karpiuk, YN Svartsov, J Nowacki

Index: Karpiuk, Jerzy; Svartsov, Yuriy N.; Nowacki, Jacek Physical Chemistry Chemical Physics, 2005 , vol. 7, # 24 p. 4070 - 4081

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Citation Number: 16

Abstract

Substitution of non-fluorescent phthalide (Pd) with amino group at meta (6) position in relation to the electron-accepting part of the lactone ring completely changes Pd photophysics: a new long-wavelength absorption band arises and the molecule becomes highly fluorescent. The experimental data and the analysis of vertical electronic transitions with TDDFT method indicate that the first absorption band in 6-aminophthalides (6-APds) ...