By choosing some donors of the aminoacetanylide class which include in
their molecule various groups of atoms with n and pi orbitals evidenc
e the participation of various molecular structures in the formation o
f molecular combinations by charge transfer (CT) were evidenced these
structures influencing each other. As acceptor we used tetracyanoethyl
ene (TCNE). The domain of formation for complex of the type DA, D2A, D
A2 according to the ratio D/A was established. For the 1 : 1 complex t
he equilibrium constat was determined.