NONLINEAR-WAVES AND ELEMENTARY ACTS OF SO LID-STATE CHEMICAL-REACTIONS

A new wave mechanism of elementary step of solid-state reactions which are not diffusion-controlled is proposed based on experimental data a nalysis and computer simulation. In the case under consideration the c ooperative motion of the particles exhibits itself on a microscopic (m olecular) level. Reaction front corresponds to the motion of localized elementary excitation of the type of topological soliton (kink) which corresponds in some respect to phase boundary in die case of structur al transition. The conditions for such a mechanism to exist and its co nsequences for macroscopic kinetics are discussed for one-dimensional model of molecular crystal.