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Updated: Jun 21, 2026

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
Published on: April 19, 2019
Temporary anion states of ferrocene and dibenzene chromium using stabilization method in density functional theory
Hsiu-Yao Cheng1, Chun-Chi Shih, Jung-Tzu Chang
1Department of Chemistry, Tunghai University, Taichung 40704, Taiwan. hycheng@thu.edu.tw
Abstract:
The Koopmans-based (KB) approximation is used to investigate the ionization potentials of ferrocene and dibenzene chromium in density functional theory. As to the energies of low-lying temporary anion states of these transition metal complexes, the stabilization method coupled with KB approximation (S-KB) is adopted. Here, the stabilization is accomplished by varying the exponents of appropriate diffuse functions. Results indicate that the S-KB method is much more successful than other methods in predicting absolute and relative energies of temporary anion states. Furthermore, the ionization potentials via KB approach are very close to the experimental values.
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