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Fluorescence analysis of iodinated acetophenone derivatives

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Date
2015-03-15
Author
Crivelaro, F.
Oliveira, M. R. S.
Lima, S. M.
Andrade, L. H. C.
Casagrande, G. A.
Raminelli, C. [UNIFESP]
Caires, A. R. L.
Type
Artigo
ISSN
1386-1425
Is part of
Spectrochimica Acta Part A-molecular and Biomolecular Spectroscopy
DOI
10.1016/j.saa.2014.12.037
Metadata
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Abstract
In the present paper the synthesis and optical characterization of iodinated acetophenone, 4-hydroxy-3-iodoacetophenone and 4-hydroxy-3,5-diiodoacetophenone obtained from 4-hydroxyacetophenone, were carried out. the optical features of iodinated molecules were determined by performing the UV-Vis absorption, fluorescence and thermal lens spectroscopies. the results showed that the optical properties of the 4-hydroxyacetophenone is altered when the iodine atom is inserted, as substituent, in the aromatic ring. Although it was determined that the optical feature was changed when one iodine atom was inserted in the aromatic ring (4-hydroxy-3-iodoacetophenone), the results revealed that emission behavior was strongly altered when two iodine atoms (4-hydroxy-3,5-diiodoacetophenone) were acting as substituents: the fluorescence quantum efficiency increases approximately 60%. (C) 2014 Elsevier B.V. All rights reserved.
Citation
Spectrochimica Acta Part A-molecular and Biomolecular Spectroscopy. Oxford: Pergamon-Elsevier B.V., v. 139, p. 63-67, 2015.
Keywords
Fluorescence
Fluorescence quantum yield
Acetophenone
Iodine
Sponsorship
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
FUNDECT
National Institute of Science and Technology of Optics and Photonics (INOF)
URI
http://repositorio.unifesp.br/handle/11600/38890
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  • ICAQF - Artigos [1140]

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