Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Siân L. Williams"'
Autor:
Anna Eremenko, Natalie Smirnova, Oksana Yakimenko, Galina Starukh, David R. Worrall, Siân L. Williams
Publikováno v:
International Journal of Photoenergy, Vol 6, Iss 1, Pp 11-16 (2004)
The effect of titania-silica binaries on the processes of PET and the decay kinetics of the Anthracene (An) fluorescence and An radical cation in presence of the co-adsorbed electron donor N,Ndimethylaniline (DMA) has been studied. The fluorescence o
Externí odkaz:
https://doaj.org/article/04776407d5774a72a34ce31d45f9a196
Publikováno v:
Research on Chemical Intermediates. 45:4205-4223
The energy and electron transfer reactions of anthracene co-adsorbed with an electron donor on silica gel and titania–silica mixed oxides have been studied by a combination of steady-state reflectance, emission spectroscopy, and nanosecond diffuse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7d97c7afe4f253dface25c0ec18b2b7
https://doi.org/10.1007/s11164-019-03901-5
https://doi.org/10.1007/s11164-019-03901-5
Autor:
David R. Worrall, Anna Komasa, Jacek Koput, José L. Bourdelande, Igor Khmelinskii, Siân L. Williams, Luis F. Vieira Ferreira, Ewa Sikorska, Marek Sikorski, Małgorzata Insińska-Rak, José Raúl Herance
Publikováno v:
Chemical Physics. 314:239-247
The photochemistry and photophysics of isoalloxazines (10-substituted 2,3,4,10-tetrahydro-benzo[g]pteridine-2,4-diones), and especially flavins (7,8-dimethyl substituted isoalloxazines), are of considerable interest due to the biological relevance of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::288becba090498b6742974cd673bdced
https://doi.org/10.1016/j.chemphys.2005.03.005
https://doi.org/10.1016/j.chemphys.2005.03.005
Autor:
Siân L. Williams, Igor Khmelinskii, Ewa Sikorska, José Raúl Herance, José L. Bourdelande, Anna Komasa, Grażyna Nowacka, David R. Worrall, Marek Sikorski
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 170:267-272
Electronic structure and singlet–singlet and triplet–triplet absorption spectra of 3-ethyl-lumiflavin were calculated using time-dependent density functional theory (TD-DFT) methods. The measured lower-energy transitions are well reproduced in ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed439ea11b1bece79bf441324c486d93
https://doi.org/10.1016/j.jphotochem.2004.08.022
https://doi.org/10.1016/j.jphotochem.2004.08.022
Autor:
Ewa Sikorska, Marek Sikorski, José Raúl Herance, José L. Bourdelande, Jacek Koput, David R. Worrall, Siân L. Williams, Igor Khmelinskii
Publikováno v:
Journal of Molecular Structure. 697:199-205
Molecular structure, ground state and triplet–triplet electronic absorption spectra were predicted for the title compound using the time-dependent density functional theory calculations. These predictions reproduce well the experimental results, ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10542a1c7a661fb5990151f49ae59713
https://doi.org/10.1016/j.molstruc.2004.04.011
https://doi.org/10.1016/j.molstruc.2004.04.011
Autor:
Aneta Bednarek, David R. Worrall, Siân L. Williams, Jacek Koput, Ewa Sikorska, José L. Bourdelande, Igor Khmelinskii, Manisha Patel, Marek Sikorski
Publikováno v:
Chemical Physics. 301:95-103
Singlet–singlet and triplet–triplet absorption spectra of a series of methyl-alloxazines were calculated using the time-dependent density-functional theory approach and compared to experimental results. The B3LYP functional provides good correlat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3acca76e9edbb32247978c399bb9a120
https://doi.org/10.1016/j.chemphys.2004.03.005
https://doi.org/10.1016/j.chemphys.2004.03.005
Autor:
David R. Worrall, Manisha Patel, José L. Bourdelande, Igor Khmelinskii, Ewa Sikorska, Siân L. Williams, Wiesław Prukała, and Jacek Koput, Marek Sikorski
Publikováno v:
The Journal of Physical Chemistry A. 108:1501-1508
Solvent effects on the spectroscopic properties of lumichromes and lumiflavins are presented. Fluorescence yields for lumiflavins are an order of magnitude larger than those for lumichromes, due to their lower nonradiative rate constants. Solvent eff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36526166de4645370af7f974650fdba8
https://doi.org/10.1021/jp037048u
https://doi.org/10.1021/jp037048u
Autor:
Jacek Koput, David R. Worrall, Rafael Gonzalez-Moreno, Ewa Sikorska, Marek Sikorski, Igor V. Khemlinskii, José L. Bourdelande, Siân L. Williams
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 162:193-201
Singlet and triplet excited states properties of 1-methyllumichrome have been studied in a series of non-polar, polar aprotic, and polar protic solvents, and adsorbed to a cellulose matrix. These observations are discussed in terms of the possible so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7e68c8596218e7999ded0665f269514
https://doi.org/10.1016/s1010-6030(03)00353-8
https://doi.org/10.1016/s1010-6030(03)00353-8
Autor:
David R. Worrall, N. P. Smirnova, Anna Eremenko, G. N. Starukh, Oksana Yakimenko, Siân L. Williams
Publikováno v:
Scopus-Elsevier
International Journal of Photoenergy, Vol 6, Iss 1, Pp 11-16 (2004)
International Journal of Photoenergy, Vol 6, Iss 1, Pp 11-16 (2004)
The effect of titania-silica binaries on the processes of PET and the decay kinetics of the Anthracene (An) fluorescence and An radical cation in presence of the co-adsorbed electron donor N,Ndimethylaniline (DMA) has been studied. The fluorescence o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d82b117a08dd751488e092d90dd7847e
https://doi.org/10.1155/s1110662x04000029
https://doi.org/10.1155/s1110662x04000029
Publikováno v:
Photochemical & Photobiological Sciences. 3:63-70
Triplet state and radical cation formation is observed following laser excitation of anthracene, phenanthrene and naphthalene (and their derivatives) adsorbed on silica gel. Energy- and electron-transfer reactions of these compounds with co-adsorbed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d2175de22847921d3b77c039a7b0e98
https://doi.org/10.1039/b308033a
https://doi.org/10.1039/b308033a