... Abstract Aminoazoidic / iminohydrazonic forms of 3-(2-thiazolylazo)-2,6-diaminopyridine (TADAP) equilibrium is investigated in 26 aprotonic solvents with the structure ordered neither by hydrogen bond association nor by free electron pairs interaction effects assuming TADAP molecules to be solvated by solvent molecules and to possess spheric or elliptic form. ... Moscow University Chemistry Bulletin . 2004, Vol. ... 4, P. 231 . Copyright (C) Chemistry Dept., Moscow State University, 2002 . ...