Influence of substituent on UV absorption and keto–enol tautomerism equilibrium of dibenzoylmethane derivatives

J Zawadiak, M Mrzyczek

Index: Zawadiak, Jan; Mrzyczek, Marek Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2012 , vol. 96, p. 815 - 819

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Citation Number: 14

Abstract

UV absorption spectra of dibenzoylmethane and its 23 derivatives with acetamide, tert-butyl, chloride, fluoride, hydroxyl, methyl, methoxy and nitro substituents in aromatic rings were collected. General influence of substituent on absorption maxima and absorption intensity was defined. Hyperchromic effects were observed for diketones with electron-donating groups in para postion. The keto–enol tautomerism equilibrium constant of obtained ...

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