A complete basis set model chemistry. VI. Use of density functional geometries and frequencies
J. Chem. Phys. 110, 2822 (1999); doi:10.1063/1.477924
Issue Date: 8 February 1999
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The recently introduced complete basis set, CBS-Q, model chemistry is modified to use B3LYP hybrid density functional geometries and frequencies, which give both improved reliability (maximum error for the G2 test set reduced from 3.9 to 2.8 kcal/mol) and increased accuracy (mean absolute error reduced from 0.98 to 0.87 kcal/mol), with little penalty in computational speed. The use of a common method for geometries and frequencies makes the modified model applicable to transition states for chemical reactions. ©1999 American Institute of Physics.
| History: | Received 24 September 1998; accepted 6 November 1998 |
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KEYWORDS and PACS
- 31.15.Ew
Electronic structure of atoms, molecules and their ions: theory Calculations and mathematical techniques in atomic and molecular physics (excluding electron correlation calculations) Density-functional theory - YEAR: 1999
RELATED DATABASES
PUBLICATION DATA
0021-9606 (print)
1089-7690 (online)
REFERENCES (28)
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