Fast reversible pseudo-unimolecular reactions do not approach equilibrium in the simple exponential fashion predicted by chemical rate equations. Many-body effects in bimolecular reactions have been revealed in an extensive series of Brownian simulations, showing up to three distinct phases in the approach to equilibrium. Recent theoretical developments are compared with the simulation as well ...

In some bimolecular reactions, for example, certain low potential-energy barrier reactions, the saddlepoint choice for the position of the activated complex is vague and sometimes incorrect. In these and in some others a different choice is needed. The concept of minimum state density for this purpose, its relation to adiabatic transition state theory and to the maximum free energy criterion, a...

The kinetic parameters of ten different enzymic mechanisms in which bimolecular transfer reactions occur concomitantly with the hydrolysis of the donor molecule have been studied. The usefulness of these parameters for making a choice of mechanism is discussed. The analysis has been extended to the use of alternative substrates in bimolecular transfer reactions that proceed without the hydrolys...

A class of Brownian dynamics algorithms for stochastic reaction-diffusion models which include reversible bimolecular reactions is presented and analyzed. The method is a generalization of the λ–̺ model for irreversible bimolecular reactions which was introduced in [11]. The formulae relating the experimentally measurable quantities (reaction rate constants and diffusion constants) with the algo...