13C-H nuclear spin coupling and 13C shicldine constants ofCH4, CzHe, CzHq, CaH? are calculated by means of the second-order pcrturbatlon theory and MO LCAO wzvefunctions. The aim of this paper is to test the ability of the recently proposed improved virtual orbit& to xc&rate the convergence of the s
Excited States of H2O using improved virtual orbitals
β Scribed by sWilliam J. Hunt; William A. Goddard III
- Publisher
- Elsevier Science
- Year
- 1969
- Tongue
- English
- Weight
- 513 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
A technique for solvmg tixe Hartree-Fock equations is proposed v&u& has the property that the virtual orb&& from trle ground state wavefunctlon are variatlonally correct approximations to the self-cons!+ tent orbltais for the excited states. This allows a whoie series of excited state wavefunctIons to be obtamed from one calculatxon Tlus method was applmd to a number of iow-lymg sulglet and trlpIet excited states of H30, ar.d found to fead to good results.
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