期刊
JOURNAL OF CHEMICAL PHYSICS
卷 121, 期 19, 页码 9313-9322出版社
AMER INST PHYSICS
DOI: 10.1063/1.1804174
关键词
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An automatic procedure for the generation of potential energy surfaces based on high level ab initio calculations is described. It allows us to determine the vibrational wave functions for molecules of up to ten atoms. Speedups in computer time of about four orders of magnitude in comparison to standard implementations were achieved. Effects due to introduced approximations-within the computation of the potential-on fundamental modes obtained from vibrational self-consistent field and vibrational configuration interaction calculations are discussed. Benchmark calculations are provided for formaldehyde and 1,2,5-oxadiazole (furazan). (C) 2004 American Institute of Physics.
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