期刊
JOURNAL OF CHEMICAL PHYSICS
卷 121, 期 11, 页码 5236-5240出版社
AMER INST PHYSICS
DOI: 10.1063/1.1780159
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The vertical excitation energy for the lowest valence pi-->pi* transition of cyclopentadiene is investigated. Using a combination of high-level theoretical methods and spectroscopic simulations, the vertical separation at the ground state geometry is estimated to be 5.43+/-0.05 eV. This value is intermediate between those calculated with coupled-cluster and multireference perturbation theory methods and is about 0.13 eV higher than the observed maximum in the absorption profile. (C) 2004 American Institute of Physics.
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