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Autor:
Helen P. Graves, Christian Detellier
Publikováno v:
Journal of the American Chemical Society. 110(18)
The kinetics of dissociation of (18-crown-6, Na/sup +/)/sup 1/ in propylene carbonate (PC), acetonitrile (AN), pyridine (PY), and acetone (AC) have been determined by /sup 23/Na NMR. Two mechanisms of exchange, namely unimolecular dissociative and bi
Autor:
William H. Saunders, Rm. Subramanian
Publikováno v:
Journal of the American Chemical Society. 106:7887-7890
In E2 reactions of PhCH/sub 2/CH/sub 2/X (Ph-phenyl; x - N(CH/sub 3/)/sub 3/ of NMe/sub 3/, SMe/sub 2/, OT, Br) containing tracer amounts of PhCHTCH/sub 2/X, secondary ..beta..-tritium isotope effects can be determined from the activity of reactant (
Autor:
E. Lee Purlee
Publikováno v:
Journal of the American Chemical Society. 81:263-272
The Gross-Butler theory for the solvent isotope effect of deuterium on acid-catalyzed reaction rates in thermodynamic activity function, Q' (n), for proton and deuteron at 25 deg are derived from experimental data by using the correct value for the i