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Convergence testing of the analytic representation of an ab initio dipole moment function for water: Improved fitting yields improved intensities

Schwenke, David W., Partridge, Harry·2000·The Journal of Chemical Physics

Abstract

In general, when computing intensities for polyatomics, one has to interpolate the dipole moment function obtained from ab initio calculations. For some high overtones of the water molecule, the computed intensities can be very sensitive to the way in which the interpolation is done. Our previous analytic representation [H. Partridge and D. W. Schwenke, J. Chem. Phys. 106, 4618 (1997)] was not adequate. We show that stable results can be obtained, and these results are in much improved agreement with experiment. We also test the importance of core electron correlation on intensities, and find the effect to be negligible. Of the existing water dipole moment functions in the literature, the present one is the most accurate.

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Metadata

Authors
Schwenke, D. W., & Partridge, H.
Venue
The Journal of Chemical Physics
Published
2000-10-22
Volume
113
Issue
16
Pages
6592-6597
ISSN
  • 0021-9606 (ISSN-L)
  • 1089-7690
OpenAlex
W1987645595
Cited by
276
References
5
FWCI
3.56
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Convergence testing of the analytic representation of an ab initio dipole moment function for water: Improved fitting yields improved intensities. https://app.cochat.ai/papers/10.1063/1.1311392
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Schwenke, D. W., & Partridge, H. (2000). Convergence testing of the analytic representation of an ab initio dipole moment function for water: Improved fitting yields improved intensities. The Journal of Chemical Physics. https://doi.org/10.1063/1.1311392

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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