two isotopes of the exchanging element must be used to measure a single exchange ... the fact this reaction consists of two proton transfer steps neither one of ...
Aromatic protonation. V. Secondary hydrogen isotope effects on hydrogen ion transfer from the hydronium ion. A. Jerry Kresge, D. P. Onwood, and S. Slae.
Medium effects on heavy-atom kinetic isotope effects. III. Structured medium model applied to complex formation via mass point attachment and coupling.
Sep 26, 2008 - group of 4-CH3-phenylalanine, obtained from the partitioning of benzylic and aromatic hydroxylation products, is 10. ..... Dkb(ka â kb). (5).
Jul 4, 2008 - Xiaoming Liang , Scott O. C. Mundle , Jennifer L. Nelson , Elodie Passeport , Calvin C. H. Chan , Georges Lacrampe-Couloume , Stephen H.
Phenylalanine hydroxylase from Chromobacterium violaceum (CvPheH) is a non-heme iron monooxygenase that catalyzes the hydroxylation of phenylalanine ...
Sep 26, 2008 - ... and Department of Chemistry, Texas A&M University, College Station, ... Dhara D. Shah , John A. Conrad , Brian Heinz , June M. Brownlee ...
Sep 26, 2008 - Chromobacterium Violaceum Phenylalanine Hydroxylase as Probes of ... from Chromobacterium Violaceum (CvPheH) is a non-heme iron.
to be 1.65 V vs. SCE, a value which agrees well with that determined by. Loveland and Dimeler.3' A value of 1.72 V vs. SCE in acetic acid solution.
to the general equation ..... Lines and the ionization rate coefficients were calculated using the equation .... On the basis of Swain's equation,13 log (k~/k~). =.
441 1 were obtained by similar techniques and will be reported in detail when current work on imidazole and its derivatives reaches completion. pK. Measurements. Because of the low solubility of dibenzylmethylamine (ca. 7 X 10-4 M a t 30") it was necessary to measure KA at pH
