Barrier means a cost of opening the closed-shells

11 BARRIER MEANS A COST OF OPENING THE CLOSED-SHELLS [Pg.826]

Reaction barriers appear because the reactants have to open their valence shells and prepare themselves to form new bonds. This means their energy goes up until the right dted structure (Le. the one which resembles the products) lowers its energy so much that the system slides down the new diabatic hypersurface to the product configuration. [Pg.827]

Eremetz, E.A. Gregoryantz, V.V. Struzhkin, H. Mao, R.J. Hemley, N. Mulders, N.M. Zimmerman, Pfa x. Rtv. Letters 85 (2000) 2797. The xenon was metallic in the temperature range 300 K-25 mK. The pioneers of these investigations were R. Reichlin, K.E. Brister, A.K. McMahan, M. Ross, S. Martin, Y.K. Vohra, A.L. Ruoff, Phys. Rev. Letters 62 (1989) 669. [Pg.827]

Intermolecular Motion of Electrons and Nuclei Chemical Reactions [Pg.828]

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