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pro vyhledávání: '"35"'
Autor:
Peter Gast, J. S. van den Brink, S. A. M. Nieuwenhuis, Jan Raap, Johan Lugtenburg, Arnold J. Hoff, R. J. Hulsebosch
Publikováno v:
Journal of the American Chemical Society. 119:8685-8694
Selective 2H-, 13C-, and 17O-isotope labeling of the tyrosine amino acid has been used to map the unpaired π-electron spin-density distribution of the UV-generated neutral l-tyrosine phenoxy radical in alkaline frozen solution. The use of 13C and 17
Publikováno v:
Journal of the American Chemical Society. 124:6449-6460
In the previous paper in this issue we have demonstrated that it is possible to measure the five different relaxation rates of a deuteron in (13)CH(2)D methyl groups of (13)C-labeled, fractionally deuterated proteins. The extensive set of data acquir
Autor:
R.L. Heppolette, R.E. Robertson
Publikováno v:
Journal of the American Chemical Society. 83:1834-1838
Rate data for the hydrolysis of isopropyl bromide in deuterium oxide are determined over a temperature of 35 to 80 deg . By comparison with earlier data for hydrolysis in water, it was shown that the solvent isotope effect (k/sub D// sub 2//sub O// k
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