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Cited by 699

The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.

A doubles correction to electronic excited states from configuration interaction in the space of single substitutions

Head-Gordon, Martin, Rico, Rudolph J., Oumi, Manabu, Lee, Timothy J.·1994·Chemical Physics Letters

Abstract

Abstract A perturbative correction to the method of configuration interaction with single substitutions (CIS) is presented. This CIS (D) correction approximately introduces the effect of double substitutions which are absent in CIS excited states. CIS (D) is a second-order perturbation expansion of the coupled-cluster excited state method, restricted to single and double substitutions, in a series in which CIS is zeroth order, and the first-order correction vanishes. CIS (D) excitation energies are size consistent and the calculational complexity scales with the fifth power of molecular size, akin to second-order Moller-Plesset theory for the ground state. Calculations on singlet excited states of ethylene, formaldehyde, acetaldehyde, butadiene and benzene show that CIS (D) is a uniform improvement over CIS. CIS (D) appears to be a promising method for examining excited states of large molecules, where more accurate methods are not feasible.

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Metadata

Authors
Head-Gordon, M., Rico, R. J., Oumi, M., & Lee, T. J.
Venue
Chemical Physics Letters
Publisher
Elsevier BV
Published
1994-03
Volume
219
Issue
1-2
Pages
21-29
ISSN
0009-2614 (ISSN-L)
OpenAlex
W2060858284
Cited by
699
References
25
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: A doubles correction to electronic excited states from configuration interaction in the space of single substitutions. https://app.cochat.ai/papers/10.1016/0009-2614(94)00070-0
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Head-Gordon, M., Rico, R. J., Oumi, M., & Lee, T. J. (1994). A doubles correction to electronic excited states from configuration interaction in the space of single substitutions. Chemical Physics Letters. https://doi.org/10.1016/0009-2614(94)00070-0

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