Zobrazeno 1 - 10
of 41
pro vyhledávání: '"B. Prass"'
Publikováno v:
The Journal of Chemical Physics. 117:4419-4427
We report a study of the photodimerization of properly arranged anthracene pairs generated by photolysis in a dianthracene crystal at 2 K. We monitor the progress of the photodimerization reaction by measuring the fluorescence lifetime of the pair ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27e788f56183d069c7d825cd5470c5e1
https://doi.org/10.1063/1.1496467
https://doi.org/10.1063/1.1496467
Publikováno v:
Berichte der Bunsengesellschaft für physikalische Chemie. 102:498-503
The pressure and temperature dependence of the reaction rate of the photochemical intermolecular H-transfer reaction in acridine-doped fluorene single crystals exhibit all typical features of solid state H-tunneling. Independent Raman data including
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed998ce567273abce27dc7dc9a9c0047
https://doi.org/10.1002/bbpc.19981020332
https://doi.org/10.1002/bbpc.19981020332
Publikováno v:
The Journal of Chemical Physics. 103:2959-2969
We report a multifaceted investigation of the hydrogen transfer photoreaction in acridine‐doped fluorene crystals at higher temperature. The purpose is to elucidate the role of vibrationally assisted tunneling in this reaction system. Raman experim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78b347f0f41d8d82b78915950750e15f
https://doi.org/10.1063/1.470483
https://doi.org/10.1063/1.470483
Publikováno v:
Chemical Physics. 178:433-448
A newly developed optical technique gives direct access to the rate of nuclear spin conversion, i.e. the rate of relaxation between tunneling levels, for methyl groups in the solid state. In dimethyl-s-tetrazine (DMST) doped single crystals of durene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5a42a4bae2ca858b244240053f5900b
https://doi.org/10.1016/0301-0104(93)85082-j
https://doi.org/10.1016/0301-0104(93)85082-j
Publikováno v:
Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics. 187:183-191
Dihydrophenazine (PH2) is decomposed via a two-step photoabsorption in suitable organic host crystals. A series of photo-products is optically observed and partly assigned to photo-products of PH2.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8528431141102b14409ed20259a9f855
https://doi.org/10.1080/00268949008036041
https://doi.org/10.1080/00268949008036041
Publikováno v:
The Journal of Chemical Physics. 92:1581-1587
The nonplanar structure of the electronic ground state of 5,10 dihydrophenazine (PH2) is responsible for a distribution of sites of PH2 observed upon doping into molecular crystals. The change in molecular geometry of PH2 following optical excitation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4cd161e2b040b92be8612092753faa3
https://doi.org/10.1063/1.458090
https://doi.org/10.1063/1.458090
Publikováno v:
Spectral Hole-Burning and Luminescence Line Narrowing: Science and Applications.
A newly developed optical hole-burning technique gives direct access to the nuclear spin conversion rate between the methyl group tunneling levels in the solid state and allows a comparison between the tunneling splitting in different electronic stat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1b6a0f1a3cd238d24188467c2bb4bae
https://doi.org/10.1364/shbl.1992.wa4
https://doi.org/10.1364/shbl.1992.wa4
Publikováno v:
Spectral Hole-Burning and Luminescence Line Narrowing: Science and Applications.
Dephasing processes observed via hole-burning in dihydrophenazine doped fluorine crystals are discussed in context with an exchange model and the reorientation of dihydrophenazine upon excitation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::222abef3ca75670e2a6863648fff5247
https://doi.org/10.1364/shbl.1992.pd1
https://doi.org/10.1364/shbl.1992.pd1
Publikováno v:
ChemInform. 21
The nonplanar structure of the electronic ground state of 5,10 dihydrophenazine (PH2) is responsible for a distribution of sites of PH2 observed upon doping into molecular crystals. The change in molecular geometry of PH2 following optical excitation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::222e994d470692dfe2eb3c896a736aa8
https://doi.org/10.1002/chin.199023050
https://doi.org/10.1002/chin.199023050
Publikováno v:
Chemical Physics. 136:187-199
Analysis of very accurate measurements of the temperature-dependent part of the H-transfer reaction rate k(T) in acridinedoped fluorene single crystals permits the identification of distinct low-energy nuclear fluctuation modes promoting the reaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0265ab0e0e482708b0cb798cd2b3947
https://doi.org/10.1016/0301-0104(89)80046-1
https://doi.org/10.1016/0301-0104(89)80046-1