Selectivity in Chemical Reactions

Selectivity in Chemical Reactions

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The aim of this Workshop on qSelectivity in Chemical Reactionsq was to examine the specific preferences exhibited by simple chemical reactions with regards to reagents having particular energy states, symmetries, alignment and orientation and the resulting formation of certain products with their corresponding energies, states, alignment and polarisation. Such problems come close to the ultimate goal of reaction dynamics of being able to determine experimentally and theoretically state-to-state cross sections and stereochemical effects under well defined and characterised conditions. There are many examples of highly selective and specific processes to be found in atmospheric and combustion chemistry and the production of population inversions amongst vibrational and electronic states lies at the heart of the development of chemical laser systems. Only when we can understand the fundamental processes that underlie the selectivity in the formation of products in a chemical reaction and the specific requirements of initial states of the reagents, can we expect to be able to develop the explanatory and predictive tools necessary to apply the subject to the development of new laser systems, efficient combustion schemes and specific methods of chemical synthesis, to the control of atmospheric pollution and to all problems in which it is necessary to direct the outcome of a chemical reaction in a specific way. The brief given to the Workshop was to critically review the field, to discuss the present limitations and difficulties and to identify new directions.As there is no angular motion the trajectories enter the contour diagram on straight lines parallel to the R-axis and due to the weak angular forces they essentially remain straight lines up ... Energy conservation demands that paths can cross Rc only when 1% 4 kmax where cimax is given by Vc(\cmax) = Etr; this Yc-interval is indicated by the two arrows on the Y-axis Etr = 0.434 eV * act a€“ RSMM LEPS Il 59.

Title:Selectivity in Chemical Reactions
Author:J.C. Whitehead
Publisher:Springer Science & Business Media - 2012-12-06


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