Abstract
The electron transfer (ET) properties of 10- and 12-vertex carboranes are investigated by the ab initio Hartree–Fock method within the Marcus-Hush (MH) two-state model and the Koopman theorem (KT) approach. The calculated value of the ET coupling matrix element, V AB, is consistently higher in the KT approach than in the MH two-state model. For the carborane molecules functionalized by –CH 2 groups at C-vertices, V AB strongly depends on the relative orientation of the planes containing the terminal –CH 2 groups. The predicted conformation dependence of V AB offers a molecular mechanism to control ET between two active centers in molecular systems.
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