ABSTRACT

Abstract ................................................................................................. 366 13.1 Aims and Backgrounds .............................................................. 366 13.2 Methodical Part .......................................................................... 366 13.3 The Results of the Calculation and Discussion .......................... 366 Keywords .............................................................................................. 377 References ............................................................................................. 377

ABSTRACT

Quantum-chemical calculation of molecules dekacene, eicocene was done by method MNDO. Optimized by all parameters geometric and electronic structures of these compounds was received. Each of these molecular models has a universal factor of acidity equal to 33 (pKa=33). They all pertain to class of very weak Н-acids (рКа>14).