Journal articles
Recasting Wave Functions into Valence Bond Structures: A Simple Projection Method to Describe Excited States
Abstract : A method is proposed to obtain coefficients and weights of valence bond (VB) determinants from multi configurational wave functions. This reading of the wave functions can apply to ground states as well as excited states. The method is based on projection operators. Both energetic and overlap-based criteria are used to assess the quality of the resulting VB wave function. The approach gives a simple access to a VB rewriting for low-lying states, and it is applied to the allyl cat-ion, to the allyl radical and to the ethene (notably to the V-state). For these states, large overlap between VB and multi reference wave functions are easily obtained. The approach proves to be useful to propose an interpretation of the nature of the V-state of ethene. V
Cited literature [1 references]
https://hal-amu.archives-ouvertes.fr/hal-01306875
Contributor : Yannick Carissan <>
Submitted on : Thursday, September 14, 2017 - 10:24:06 AM
Last modification on : Wednesday, February 26, 2020 - 9:14:02 AM
Contributor : Yannick Carissan <>
Submitted on : Thursday, September 14, 2017 - 10:24:06 AM
Last modification on : Wednesday, February 26, 2020 - 9:14:02 AM
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