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Issue 20, 2014
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Diradical character from the local spin analysis

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Diradical species are analyzed in light of the local spin analysis. The atomic and diatomic contributions to the overall 〈Ŝ2〉 value are used to detect the diradical character of a number of molecular species mostly in their singlet state, for which no spin density exists. A general procedure for the quantification of diradical character for both singlet and triplet states is achieved by using a recently introduced index that measures the deviation of an actual molecule from an ideal system of perfectly localized spin centers. The index is of general applicability and can be easily determined in equal footing from a multireference or an open-shell single-determinant wave function.

Graphical abstract: Diradical character from the local spin analysis

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Supplementary files

Article information

04 Mar 2014
30 Mar 2014
First published
03 Apr 2014

Phys. Chem. Chem. Phys., 2014,16, 9565-9571
Article type

Diradical character from the local spin analysis

E. Ramos-Cordoba and P. Salvador, Phys. Chem. Chem. Phys., 2014, 16, 9565
DOI: 10.1039/C4CP00939H

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