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Title: On the photophysical behaviour of 4-halo-5-phenylisoxazoles
Authors: Fonseca, Sofia M. 
Burrows, Hugh D. 
Nunes, Cláudio M. 
Melo, Teresa M. V. D. Pinho e 
Gonsalves, António M. d'A. Rocha 
Issue Date: 2005
Citation: Chemical Physics Letters. 414:1-3 (2005) 98-101
Abstract: Detailed spectral and photophysical properties of 4-halo-5-phenylisoxazoles in cyclohexane solutions are presented, including measurements of energies of lowest excited singlet and triplet states, fluorescence quantum yields, lifetimes, phosphorescence and triplet-singlet difference absorption spectra. Upon addition of ethanol, loss of vibrational structure is observed in fluorescence spectra and attributed to formation of isoxazole-ethanol aggregates. The relevance of these properties to the photochemical and thermal reactivity of these systems is discussed.
Rights: openAccess
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

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