Nature of the Coordination Bond
in the GeCl₄Trimethylamine Complex

V. P. Feshin and E. V. Feshina

Institute of Technical Chemistry, Ural Branch, Russian Academy of Sciences,
ul. Akademika Koroleva 3, Perm, 614013 Russia

e-mail: vpfeshin@mail.ru

Received February 6, 2014

Abstract—Quantum-chemical computations were performed for the GeCl₄ N(CH₃)₃ system using the
MP2/6-31G(d) method with total optimization of its geometry and at different fixed Ge…N distances (from 2.0
to 4.5 Å). The coordination bond in the complex results from the involvement of different AOs of Ge and N
atoms (along with other atoms in the molecule) in the formation of a number of MOs. The number of these MOs
increases with decreasing GeN distance, thus reducing the total energy of a molecule and stabilizing it. The
coordination bond and the covalent bond are of the same nature. When the distance between the components of
the system is reduced, the partial negative charges of N, C, and all Cl atoms increase; the partial positive charges
of Ge and H increase as well.

DOI: 10.1134/S0036023614100064

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