Zobrazeno 1 - 10
of 49
pro vyhledávání: '"J.Michael Hollas"'
Autor:
J.Michael Hollas
Publikováno v:
Journal of the Chemical Society, Faraday Transactions. 94:1527-1540
The use of lasers and, particularly, the supersonic jet or molecular beam has revolutionised the electronic spectroscopy of molecules of the size of benzene, or larger. With the extreme rotational and vibrational cooling in the jet much of the conges
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d214278666261b1083c35e22b545499
https://doi.org/10.1039/a801202d
https://doi.org/10.1039/a801202d
The cis and trans rotational isomers of 3-fluorostyrene. What is the energy difference between them?
Publikováno v:
Chemical Physics Letters. 226:577-582
Results obtained for 3-fluorostyrene from single vibronic level fluorescence in a supersonic jet, microwave spectroscopy and ab initio calculations have been interpreted to give cis-trans energy differences of 220±50, 26±45, and 43 cm−1 with cis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03edd430746c69201608c9e057665922
https://doi.org/10.1016/0009-2614(94)00761-6
https://doi.org/10.1016/0009-2614(94)00761-6
Autor:
J.Michael Hollas, Robert D. Gordon
Publikováno v:
The Journal of Chemical Physics. 99:3380-3389
In a study of the 281 nm S1–S0 electronic spectrum of 1,4‐benzodioxan, the high‐resolution vapor absorption spectrum, the fluorescence excitation spectrum in a supersonic jet, and the dispersed single‐vibronic‐level fluorescence spectra for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e877825806878fe5d66dc75aab50a2f7
https://doi.org/10.1063/1.465148
https://doi.org/10.1063/1.465148
Publikováno v:
Chemical Physics Letters. 211:392-396
Both fluorescence excitation and dispersed fluorescence spectra of 2-aminobenzotrifluoride in a supersonic jet show quite extensive vibrational structure due to the CF 3 -torsional motion in the S 1 and S 0 electronic states, respectively. This struc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8070f96be1a262d826c4addf6a85a144
https://doi.org/10.1016/0009-2614(93)87079-i
https://doi.org/10.1016/0009-2614(93)87079-i
Autor:
J.Michael Hollas, Robert Gordon
Publikováno v:
Journal of Molecular Structure. 293:193-196
The 281 nm electronic spectrum of 1,4-benzodioxan has been photographed in absorption under high resolution, revealing a complex pattern of sharp vibronic bands. Dispersed single-vibronic-level fluorescence spectra in a supersonic jet have been obtai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::520684a3e05bc944e31b71c68fdb96a7
https://doi.org/10.1016/0022-2860(93)80047-y
https://doi.org/10.1016/0022-2860(93)80047-y
Autor:
Robert D. Gordon, J.Michael Hollas
Publikováno v:
Journal of Molecular Spectroscopy. 156:415-420
The rotational contour of the 281-nm origin band of the S 1 ← S 0 transition of 1,4-benzodioxan has been photographed and analyzed. It is shown to be type A , which establishes the transition as A ← A (in C 2 ), as expected for an o -disubstitute
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfa0557eaa64d855c5d2ccadc2c1f3c2
https://doi.org/10.1016/0022-2852(92)90242-g
https://doi.org/10.1016/0022-2852(92)90242-g
Publikováno v:
Journal of Molecular Spectroscopy. 153:587-598
Single vibronic level (dispersed) fluorescence spectra of 4-methylstyrene, with excitation in various excited vibrational levels of S 1 , have provided wavenumbers of some a ′ and a ″ vibrations in S 0 and energy levels for the C(1)-C(α) vinyl t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1ca1d1a9f17f950644a6af9e58d8e5b
https://doi.org/10.1016/0022-2852(92)90495-a
https://doi.org/10.1016/0022-2852(92)90495-a
Publikováno v:
Journal of Molecular Spectroscopy. 151:522-528
A rotational contour analysis of the 000 band of the 269-nm S1-S0 band system of 1,2,4-trifluorobenzene has been carried out by computer simulation. The band is a type A B hybrid which shows that the electronic transition is of the π ∗ -π type po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a298618cd72412a031bd7fedb0e2ff01
https://doi.org/10.1016/0022-2852(92)90584-b
https://doi.org/10.1016/0022-2852(92)90584-b
Publikováno v:
Journal of Molecular Spectroscopy. 149:34-44
Single vibronic level fluorescence (SVLF) spectra, in a supersonic jet, and infrared and Raman spectra of 4-aminobenzotrifluoride have been recorded and assigned to give, apart from some a 2 vibrations, a complete set of fundamental vibration wavenum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65bad9cda30727be4d28c34e26660069
https://doi.org/10.1016/0022-2852(91)90142-w
https://doi.org/10.1016/0022-2852(91)90142-w
Publikováno v:
Chemical Physics Letters. 183:377-383
Torsional structure in the supersonic jet spectra of 3-aminobenzotrifluoride has been interpreted. The CF 3 torsional potentials are surprisingly similar to the CH 3 potentials in 4-toluidine: there is a low barrier with a minimum near φ = 25° in S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f1958f2938ad117716aa570aeb01dac
https://doi.org/10.1016/0009-2614(91)90397-r
https://doi.org/10.1016/0009-2614(91)90397-r