Fluorescence of harmol, harmalol and 2-hydroxycarbazole in concentrated hydroxide solutions.
作者信息
Hidalgo J, Carmona C, Balón M, Muñoz M A
机构信息
Department of Physical Chemistry, Faculty of Pharmacy, University of Sevilla, Spain.
出版信息
Pharm Weekbl Sci. 1990 Aug 24;12(4):142-4. doi: 10.1007/BF01970154.
PMID:2277759
Abstract
Room temperature electronic absorption and fluorescence spectra of harmol, harmalol and 2-hydroxycarbazole have been obtained in concentrated aqueous potassium hydroxide solutions. The appearance of a new fluorescence band for all these compounds in media of H- greater than 16, has been ascribed to the emission of excited dianions formed by deprotonation. Acidity constants have been estimated from the Föster-Weller method.
摘要
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