Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Wilfried Majenz"'
Publikováno v:
Chemical Physics. 173:525-537
Semiempirical calculations within the CNDO/S framework are used to characterize the nature of the “phantom-singlet” excited state P * (double-bond twisted geometry) of stilbene and stilbenoid donor-acceptor dye systems including the laser dyes DC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::435dcd7ea978d12b51c2ab81a2454966
https://doi.org/10.1016/0301-0104(93)80166-7
https://doi.org/10.1016/0301-0104(93)80166-7
Publikováno v:
Pure and Applied Chemistry. 65:1699-1704
Stilbenes undergo multidimensional adiabatic photochemistry in the excited state involving the twist of the central double and of the adjacent single bonds. By bridging the single bonds chemically, dimen- sionality is reduced, and only one product st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da909fef464afb33e03f96f6967605b0
https://doi.org/10.1351/pac199365081699
https://doi.org/10.1351/pac199365081699
Autor:
René Lapouyade, E. Gilabert, Konstantin Czeschka, Wilfried Majenz, Claude Rullière, Wolfgang Rettig
Publikováno v:
ChemInform. 24
Several selectively bridged 4-(dimethylamino)-4'-cyanostilbenes are investigated. All of them show strongly red-shifted fluorescence spectra connected with a considerable dynamical Stokes shift in polar solvents. Bridging, however, photophysics (fluo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ec87890bf7e491543b51fb8f1e44732
https://doi.org/10.1002/chin.199311050
https://doi.org/10.1002/chin.199311050
Autor:
E. Gilabert, René Lapouyade, Claude Rullière, Wilfried Majenz, Wolfgang Rettig, Konstantin Czeschka
Publikováno v:
The Journal of Physical Chemistry. 96:9643-9650
Several selectively bridged 4-(dimethylamino)-4'-cyanostilbenes are investigated. All of them show strongly red-shifted fluorescence spectra connected with a considerable dynamical Stokes shift in polar solvents. Bridging, however, photophysics (fluo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b2562723dd1b966de579ecbcfea5383
https://doi.org/10.1021/j100203a016
https://doi.org/10.1021/j100203a016
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 65:95-110
Examples of adiabatic photoreactions like excited state proton transfer, excimer and twisted intramolecular charge transfer (TICT) state formation are compared, and the most important methods for their investigation and characterization are outlined.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bcdb92a7a2fd9ec8fef21eb7f0610ed
https://doi.org/10.1016/1010-6030(92)85035-s
https://doi.org/10.1016/1010-6030(92)85035-s
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 62:415-427
The photophysics of many flexible dye systems can be understood on the basis of adiabatic photoreactions to emissive or nonemissive product states. Nonemissive product states lead to fluorescence quenching and are often the reason for what is convent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec56c4a626f7e78f3cdd904360a41cb2
https://doi.org/10.1016/1010-6030(92)85068-6
https://doi.org/10.1016/1010-6030(92)85068-6
Autor:
Wolfgang Rettig, Wilfried Majenz
Publikováno v:
Chemical Physics Letters. 154:335-341
Time-resolved fluorescence studies on 4-dimethylamino-4′-cyano-stilbene (DCS) and on the laser dye DCM in homologous solvent series of differing polarity reveal a strong polarity control of the temperature-dependent nonradiative decay rate k nr . T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7be34fd0f1d2330dc692c28762cad6a2
https://doi.org/10.1016/0009-2614(89)85366-7
https://doi.org/10.1016/0009-2614(89)85366-7