Chemical Kinematics

A chemical system is a collection of atomic nuclei and accompanying electrons interacting by electromagnetic forces and organized into one or more lattices, molecules, and transient structures. A general problem is to devise a mathematical representation of conformation which is useful in further mechanical analysis. Through dihedral rotations of bonds and relative motion of structures, many chemical systems can attain an infinite number of conformations. A scheme which can partition these into a finite number of sets can assist in comprehension and calculation.

At the macroscopic level, kinematics can describe the progress of a reaction. There it is a part of chemical kinetics. At the microscopic level, is the emerging field of molecular kinematics named by Fischer and also studied in the Kavraki group.

For a given macromolecule, the problem of finding the conformation with a potential energy near the global minimum is particularly interesting and yet notoriously difficult. A partitioning scheme can assist in finding such a special conformation. More generally, a partitioning of conformations is fundamental to understanding the evolution of a chemical process.

Opinion


The problem of partitioning of conformations is central to the kinematics of any complex chemical system.

Publications


1993 "Classifying the Conformations of a Chemical System Using Matrices of Integers", Journal of Mathematical Chemistry, Volume 13, pp. 73-94, Springer. Several interesting avenues for further work can be found in the article. The ISI reports 0 citations since publication.

The above publication contains a flaw, first reported by T.F. Havel in a personal communication. In principle the flaw has been resolved.

Sequel to "Classifying the Conformations of a Chemical System ...". May not be published during my life.

Copyright (c) 2004, Peter Lyall Easthope. All rights reserved.

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