Aa. Stuchebrukhov, ON THE NONORTHOGONAL BASIS-SET CALCULATIONS OF THE BRIDGE-MEDIATED ELECTRONIC MATRIX-ELEMENTS, Chemical physics letters, 265(6), 1997, pp. 643-648
A simple derivation of the tunneling superexchange matrix element for
long-distance electron transfer reactions is presented. Non-orthogonal
ity (overlaps) of the donor and acceptor orbitals and the bridging orb
itals are explicitly taken into account. (C) 1997 Elsevier Science B.V
.