Absorption and luminescence spectra of products of phototransformation of α-hydroxyanthraquinones

VM Dibrova, VG Klimenko, RN Nurmukhametov…

Index: Dibrova, V. M.; Klimenko, V. G.; Nurmukhametov, R. N.; Shigorin, D. N. Journal of Applied Spectroscopy, 1990 , vol. 53, # 2 p. 835 - 840 Zhurnal Prikladnoi Spektroskopii, 1990 , vol. 53, # 2 p. 242 - 247

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Abstract

In the case of anthraquinone derivatives that contain electron-donor substituents, the lowest excited state is the 7rlTr* state, which is more often called the intramolecular charge-transfer (ICT) state in the literature. According to the theoretical concepts, such compounds should not undergo photoreduction [5]; however, it has been shown experimentally that aminoanthraquinones in alcoholic media are converted by the action of light to the leuco ...