Zobrazeno 1 - 10
of 253
pro vyhledávání: '"Ralph S. Becker"'
Autor:
Fernando Pina
Publikováno v:
Boletim da Sociedade Portuguesa de Química. :21
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::802042bc7f62f4bbf9a6a3378ec9313b
https://doi.org/10.52590/m3.p615.a30001145
https://doi.org/10.52590/m3.p615.a30001145
Publikováno v:
ARKIVOC, Vol 2011, Iss 9, Pp 205-220 (2011)
Externí odkaz:
https://doaj.org/article/0e3dd76195e24f83a5e89f80c058d9a5
Autor:
W. Herre
Publikováno v:
Berichte der Bunsengesellschaft für physikalische Chemie. 74:310-310
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab9c7ef9caa2f3c960794c96013a3fdb
https://doi.org/10.1002/bbpc.19700740331
https://doi.org/10.1002/bbpc.19700740331
Autor:
and A. L. Maçanita, Fernando B. Dias, João Pina, Ralph S. Becker, Hugh D. Burrows, J. Sérgio Seixas de Melo
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The photophysics of six oligothiophenes end-capped with cyano groups (CNalphan) was investigated in solution at room and low temperature. The study comprises singlet-singlet and triplet-triplet absorption and emission spectra together with lifetimes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fd919689224e0fbf4c0e59be90d6e36
https://doi.org/10.1021/jp055455v
https://doi.org/10.1021/jp055455v
Publikováno v:
Chemical Physics. 316:108-116
A photochemical and photophysical investigation has been carried out on 2,2-dimethyl-7,8-benzo-2H-chromene and 2,2-dimethyl-5,6-benzo-2H-chromene. Absolute quantum yields of fluorescence [ΦF(n)] and photochemistry [ΦPC(n)] have been determined and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e15b95be875e2de7b72168efd035f0d5
https://doi.org/10.1016/j.chemphys.2005.05.008
https://doi.org/10.1016/j.chemphys.2005.05.008
Autor:
Guilford Jones, Steven P. Gygi, Bo Wen, Carlos A. Gartner, Sidney D. Nelson, Jiandi Wan, Ralph S. Becker
Publikováno v:
Biochemistry. 44:1846-1855
Cytochrome P450 3A4 is a drug-metabolizing enzyme of extraordinarily broad substrate specificity. This quality imparts upon the enzyme special importance in understanding its determinants of activity and substrate recognition. Limited successes in P4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2667d4f596458b0878a84901a07deb6
https://doi.org/10.1021/bi049231z
https://doi.org/10.1021/bi049231z
Autor:
Emilia Leitao, A.A. Dias, Gian Gaetano Aloisi, Fausto Elisei, Vasco D. B. Bonifácio, Ralph S. Becker, Fausto Ortica, António L. Maçanita, Maria João Caldeira, Christopher D. Maycock
Publikováno v:
Photochemistry and Photobiology. 77:22-29
In this work we present a detailed study of the mechanism of photochemistry and thermal reactions, as well as of the kinetics of flavothione (FLT) in ethanol. Furthermore, we analyzed how the hydroxysubstitution pattern of FLT influenced both the kin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e8af6139b71f4335127adb606188e90
https://doi.org/10.1562/0031-8655(2003)0770022pofahm2.0.co2
https://doi.org/10.1562/0031-8655(2003)0770022pofahm2.0.co2
Publikováno v:
The Journal of Chemical Physics. 117:4428-4435
The photophysics of several oligomers containing mixed furan, pyrrole, and thiophene heterocyclic systems is reported. The mixed systems contain three rings and five rings of the heterocycles. Comprehensive spectroscopic and photophysical data were o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd51784a8e1cdb973aee909a5d620ac3
https://doi.org/10.1063/1.1498115
https://doi.org/10.1063/1.1498115
Autor:
Ralph S. Becker, Gian Gaetano Aloisi, Fausto Elisei, Carlos A. Gartner, J. Sérgio Seixas de Melo
Publikováno v:
Scopus-Elsevier
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
CIÊNCIAVITAE
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
CIÊNCIAVITAE
The photophysical properties of (oligo)polyfurans (Fn, where n ) 1-5 represents the number of rings) are presented for the first time for 2-4 rings and compared to parallel data for the corresponding (oligo)polythiophenes (Tn). The quantum yields of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e22ae1f1bd25502fa9a4d42d8f61257
https://doi.org/10.1021/jp994177v
https://doi.org/10.1021/jp994177v
Autor:
Fausto Ortica, Emilia Leitao, Manuela Costa, Gian Gaetano Aloisi, Fausto Elisei, Isabel A. Abreu, Ralph S. Becker, João C. Lima, A. Dias, Vasco D. B. Bonifácio, António L. Maçanita, Jorge Medeiros
Publikováno v:
CIÊNCIAVITAE
Scopus-Elsevier
Scopus-Elsevier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49892670697021515365d52ba3beb0d5
https://doi.org/10.1021/jp000084y
https://doi.org/10.1021/jp000084y