State specific reactions

The initial state-specific reaction rate constant for both diatom-diatom and atom-triatom reactions is calculated by averaging the corresponding cross-section over a Boltzmann distribution of translational energy ... 

State-specific reactions of excited alkali metal atoms have been encountered a number of times. We have mentioned already the K -I- H2 KH - - H reaction which is turned on by excitation of potassium to the 7s level (ca. 3.7 eV above the ground state), and not by the excitation to the 5d D level, although it is only 0.01 eV below the 7s level [155, 156]. Such a change in reactivity is, of course, linked to the different potential energy surface on which the reaction is promoted, but owing to the equivalent energy of the 7s S and 5d D levels the difference in reactivity is connected with orbital symmetry. 

W. H. Thompson and W. H. Miller, State-specific reaction probabilities with a power series Green function, Chem. Phys. Lett. 206 123 (1993). 

It should be emphasized that V is a state specific reaction operator corresponding to only one eigenenergy f ... 

The Hj" ion crystals produced in this way could be useful systems for exploring the chemistry of In particular, the study of state-specific reactions of via high-resolution infrared spectroscopy could provide valuable input for theories of ion-molecule gas-phase chemistry and precise calculations of molecular transition frequencies of this two-electton molecule. 

The difference of these fluxes which is proportional to the modulated detector signal divided by the infrared fluorescence intensity eventually furnishes the desired state specific reaction cross section... 

In subsequent work, Bowers and coworkers used this separation technique to examine state-specific reactions of Co+ with CjHg, CH3I, and rare gases,< °- as well as Fe+ with and NF and CF with rare gases, all at thermal energies. Likewise... 

Elkind, J. L. Armentrout, P. B., State-specific reactions of atomic transition metal ions with H2, HD and Dji Effects of d orbitals on chemistry , J. Phys. Chem. 1987, 91, 2037-2045. 

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