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Reactions of Chiral Molecules in the Presence of a Time-non-invariant Enantiomorphous Influence: a New Kinetic Principle Based on the Breakdown of Microscopic Reversibility by L.D. Barron is a Physics and Astronomy article available to read on EtoBox.
What is Reactions of Chiral Molecules in the Presence of a Time-non-invariant Enantiomorphous Influence: a New Kinetic Principle Based on the Breakdown of Microscopic Reversibility about?
It is suggested that conventional kinetic principles do not apply to processes involving chiral molecules in the presence of a time-non-invariant enantiomorphous influence on account of the breakdown of microscopic reversibility and hence of detailed balancing. This implies different rate constants for enantiomeric processes, and absolute asymmetric synthesis in a reaction under kinetic control. Since the chiral enantiomers are isoenergetic in the presence of the influence, the enantiomeric excess will disappear if the reaction has been allowed to reach true thermodynamic equilibrium. A chemical quadrangle is used to show how the kinetic and thermodynamic requirements can be reconciled. A general analysis is given which parallels that for particle-antiparticle processes in the presence of Cp violation, and similarly depends on unitarity, rather than microscopic reversibility, for the validity of the underlying thermodynamic principles. A simple example is considered involving the conrotatory ring closure of a substituted butadiene to produce a chiral cyclobutene.
Who reads Reactions of Chiral Molecules in the Presence of a Time-non-invariant Enantiomorphous Influence: a New Kinetic Principle Based on the Breakdown of Microscopic Reversibility?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- L.D. Barron
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0009-2614)
- Published
- 1987
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)