Studies on Curcumin and Curcuminoids. XXXIX. Photophysical Properties of Bisdemethoxycurcumin

The steady-state absorption and fluorescence, as well as the time-resolved fluorescence properties of bisdemethoxycurcumin dissolved in several solvents differing in polarity and H-bonding capability were measured. The photodegradation quantum yield of the compound in acetonitrile and methanol was d...

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Detalles Bibliográficos
Autores principales: Nardo, Luca, Andreoni, Alessandra, Masson, Màr, Haukvik, Tone, Tønnesen, Hanne Hjorth
Formato: Texto
Lenguaje:English
Publicado: Springer US 2010
Materias:
Original Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3104010/
https://www.ncbi.nlm.nih.gov/pubmed/20953820
http://dx.doi.org/10.1007/s10895-010-0750-x
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author Nardo, Luca
Andreoni, Alessandra
Masson, Màr
Haukvik, Tone
Tønnesen, Hanne Hjorth
author_facet Nardo, Luca
Andreoni, Alessandra
Masson, Màr
Haukvik, Tone
Tønnesen, Hanne Hjorth
author_sort Nardo, Luca
collection PubMed
description The steady-state absorption and fluorescence, as well as the time-resolved fluorescence properties of bisdemethoxycurcumin dissolved in several solvents differing in polarity and H-bonding capability were measured. The photodegradation quantum yield of the compound in acetonitrile and methanol was determined. The bisdemethoxycurcumin decay mechanisms from the S (1) state were discussed and compared with those of curcumin. The differences in S (1) dynamics observed between bisdemethoxy-curcumin and curcumin could be ascribed to a difference in H-bond acceptor/donor properties of the phenolic OH and a difference in strength of the intramolecular H-bond in the keto-enol moiety within the two molecules.
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spelling pubmed-31040102011-07-14 Studies on Curcumin and Curcuminoids. XXXIX. Photophysical Properties of Bisdemethoxycurcumin Nardo, Luca Andreoni, Alessandra Masson, Màr Haukvik, Tone Tønnesen, Hanne Hjorth J Fluoresc Original Paper The steady-state absorption and fluorescence, as well as the time-resolved fluorescence properties of bisdemethoxycurcumin dissolved in several solvents differing in polarity and H-bonding capability were measured. The photodegradation quantum yield of the compound in acetonitrile and methanol was determined. The bisdemethoxycurcumin decay mechanisms from the S (1) state were discussed and compared with those of curcumin. The differences in S (1) dynamics observed between bisdemethoxy-curcumin and curcumin could be ascribed to a difference in H-bond acceptor/donor properties of the phenolic OH and a difference in strength of the intramolecular H-bond in the keto-enol moiety within the two molecules. Springer US 2010-10-16 2011 /pmc/articles/PMC3104010/ /pubmed/20953820 http://dx.doi.org/10.1007/s10895-010-0750-x Text en © The Author(s) 2010 https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Original Paper
Nardo, Luca
Andreoni, Alessandra
Masson, Màr
Haukvik, Tone
Tønnesen, Hanne Hjorth
Studies on Curcumin and Curcuminoids. XXXIX. Photophysical Properties of Bisdemethoxycurcumin
title Studies on Curcumin and Curcuminoids. XXXIX. Photophysical Properties of Bisdemethoxycurcumin
title_full Studies on Curcumin and Curcuminoids. XXXIX. Photophysical Properties of Bisdemethoxycurcumin
title_fullStr Studies on Curcumin and Curcuminoids. XXXIX. Photophysical Properties of Bisdemethoxycurcumin
title_full_unstemmed Studies on Curcumin and Curcuminoids. XXXIX. Photophysical Properties of Bisdemethoxycurcumin
title_short Studies on Curcumin and Curcuminoids. XXXIX. Photophysical Properties of Bisdemethoxycurcumin
title_sort studies on curcumin and curcuminoids. xxxix. photophysical properties of bisdemethoxycurcumin
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3104010/
https://www.ncbi.nlm.nih.gov/pubmed/20953820
http://dx.doi.org/10.1007/s10895-010-0750-x
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