Issue 1, 1993
From the journal:

Journal of the Chemical Society, Perkin Transactions 2

Acid–base and spectral properties of β-carbolines. Part 1. Tetrahydro-β-carbolines

Manuel Balón,   José Hidalgo,   Pilar Guardado,   María A. Muñoz  and  Carmen Carmona  

Abstract

The absorption and fluorescence spectra of a set of tetrahydro-β-carboline(9H-1,2,3,4-tetrahydropyrido[3,4-b]indole) derivatives in the HI/pH/H– range of –11 to +18 have shown the presence of four different molecular species, namely: dication, cation, neutral and anion. Ionization data for the prototropic equilibria involving these species have been obtained spectrophotometrically at 25 °C and comparatively analysed by the Hammett acidity function and the excess acidity methods. The changes of acidity or basicity experienced by those species upon excitation to their lowest singlet excited states have been estimated from the Förster–Weller cycle. The influence of structural variations on the spectral and acid–base properties of these compounds is discussed.

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Article information

DOI
https://doi.org/10.1039/P29930000091
Article type
Paper

J. Chem. Soc., Perkin Trans. 2, 1993, 91-97

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Acid–base and spectral properties of β-carbolines. Part 1. Tetrahydro-β-carbolines

M. Balón, J. Hidalgo, P. Guardado, M. A. Muñoz and C. Carmona, J. Chem. Soc., Perkin Trans. 2, 1993, 91 DOI: 10.1039/P29930000091

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