[Electronic-conformational interactions of molecular-biological systems. I. Quantum-chemical aspect of the theory of electronic-conformational interaction].

Electronic-conformational interactions (ECI) are the main causes of enzymatic catalysis and other biological processes, occuring at the molecular and super-molecular levels. For the studies of several problems, related to ECI the qualitative methods of quantum chemistry can be used, in particular the method of intermolecular orbitals. The possibilities of this method are shown in some simple cases.