@article {4565,
	title = {Kinetic isotope effect in the gas-phase reaction of muonium with molecular oxygen},
	journal = {Journal of Physical Chemistry A},
	volume = {103},
	number = {13},
	year = {1999},
	note = {ISI Document Delivery No.: 184KQTimes Cited: 13Cited Reference Count: 101},
	month = {Apr},
	pages = {2076-2087},
	type = {Review},
	abstract = {The rate constant of the gas-phase addition reaction of the light hydrogen isotope muonium to molecular oxygen, Mn + O-2 {\textendash}> MuO(2), was measured over a range of temperatures from 115 to 463 K at a pressure of 2 bar and from 16 to 301 bar at room temperature, using N-2 as the moderator gas. The reaction remains in the termolecular regime over the entire pressure range. At room temperature, the average low-pressure limiting rate constant is k(ch)(0)(Mu) = (8.0 +/- 2.1) x 10(-33) cm(6) s(-1), a factor of almost 7 below the corresponding rate constant for the H + O-2 addition reaction, k(ch)(0)(H). In contrast to k(ch)(0)(H), which exhibits a clear negative temperature dependence, k(ch)(0)(MU) is essentially temperature independent. At room temperature, the kinetic isotope effect (KIE) is strongly pressure (density) dependent and is reversed at pressures near 300 bar. The kinetics are analyzed based on the statistical adiabatic channel model of Tree using a Morse potential, which works well in reproducing the overall KIE. The major factors governing the isotope effect are differences in the moment of inertia and density of vibrational states of the addition complex.},
	keywords = {ABSOLUTE RATE, CHARACTERIZATION, COLLISION RATE CONSTANTS, CONSTANTS, ELECTRON-SPIN-EXCHANGE, LOW-PRESSURES, POTENTIAL-ENERGY SURFACE, RATE COEFFICIENTS, THEORETICAL, THERMAL UNIMOLECULAR REACTIONS, TRAJECTORY CALCULATIONS, TRANSITION-STATE THEORY},
	isbn = {1089-5639},
	url = {<Go to ISI>://000079611700020},
	author = {Himmer, U. and Dilger, H. and Roduner, E. and Pan, J. J. and Arseneau, D. J. and Fleming, Donald G. and Senba, M.}
}
@article {4317,
	title = {The effects of a mixture of charged and neutral additives on analyte migration behavior in capillary electrophoresis},
	journal = {Electrophoresis},
	volume = {19},
	number = {3},
	year = {1998},
	note = {ISI Document Delivery No.: ZD713Times Cited: 14Cited Reference Count: 45},
	month = {Mar},
	pages = {388-396},
	type = {Article},
	abstract = {Multicomponent additives, such as derivatized cyclodextrins with various degrees of substitution, can be considered single-component additives as long as the fraction of each component remains constant. In this paper, equations are derived describing the effect of such additives on the migration behavior of analytes. These equations are used in the study of capillary electrophoresis (CE) systems with differentially charged cyclodextrins as additives. For weakly acidic analytes, the binding with highly negatively charged sulfobutyl ether beta-cyclodextrin (SBE-beta-CD) increases their negative electrophoretic mobility, while the binding with neutral hydroxypropyl-beta-cyclodextrin (HP-beta-CD) decreases their negative mobility. By obtaining the equilibrium constants and mobilities for each additive with each analyte (in this case, phenol, 2-naphthol and 1-naphthol), the migration behavior of these analytes in CE systems is quantitatively predicted at various concentrations of mixtures of the two additives. The properties of the contour lines in the binding isotherm surfaces of such CE systems are discussed.},
	keywords = {ANALYTE, ASPECTS, BETA-CYCLODEXTRIN, CHIRAL, ELECTROPHORESIS, MICELLAR ELECTROKINETIC CHROMATOGRAPHY, MIGRATION BEHAVIOR, MOBILE PHASES, multicomponent additives, RESOLUTION, SELECTIVITY, SEPARATION, separation theory, STATIONARY PHASE, THEORETICAL, TIOCONAZOLE ENANTIOMERS, two-additive capillary, ZONE ELECTROPHORESIS},
	isbn = {0173-0835},
	url = {<Go to ISI>://000072716000004},
	author = {Kranack, A. R. and Bowser, M. T. and Britz-McKibbin, P. and Chen, D. D. Y.}
}
@article {3473,
	title = {MU+NO - KINETIC ISOTOPE EFFECTS IN UNIMOLECULAR DISSOCIATION},
	journal = {Journal of Physical Chemistry},
	volume = {99},
	number = {47},
	year = {1995},
	note = {ISI Document Delivery No.: TF811Times Cited: 10Cited Reference Count: 80},
	month = {Nov},
	pages = {17160-17168},
	type = {Article},
	abstract = {The thermal addition reaction Mu + NO + M reversible arrow MuNO* + M has been studied by a longitudinal magnetic field muon spin relaxation (mu SR) technique, at room temperature, in the presence of up to 60 atm of N-2 as inert moderator. The pressure dependence of the effective rate constant for Mu addition (k(eff)) demonstrates that the system remains well in the low-pressure regime in this pressure range. The termolecular rate constant, k(0)(Mu) = (8.76 +/- 0.46) x 10(-33) cm(6) molecule(-2) s(-1), is about 5 times smaller than that reported for the corresponding H-atom reaction (Tsang, W.; Herron, J. T. J. Phys. Chem. Ref. Data 1991, 20, 609), the largest isotope effect of its kind yet reported for reactions of this nature and most likely due to the increased rate of MuNO* dissociation resulting from the much lighter mass of the Mu atom (m(Mu)/m(H) similar to 1/9). This result should provide an important test of theoretical calculations for dissociating molecules involving few degrees of freedom. Quantum tunneling, normally facile for the much lighter Mu atom, is unlikely to play a major role in establishing the isotope effect seen in k(0). In the present instance, the mu SR technique relies on measuring the relaxation rate for the chemical process of addition (lambda(c)) in competition with that for spin exchange (lambda(se)), with the NO unpaired electron. The pressure-independent average value for the spin exchange rate constant found, k(se) = (3.00 +/- 0.12) x 10(-10) cm(3) molecule(-1) s(-1), is in good agreement with previous values obtained by transverse field mu SR (Fleming, D. G., et al. J. Chem. Phys. 1980, 73, 2751).},
	keywords = {CHANNEL MODEL-CALCULATIONS, CHARACTERIZATION, ELECTRON-SPIN EXCHANGE, H+CH3->CH4 RECOMBINATION, INTERPOLATED, MICROCANONICAL VARIATIONAL THEORY, PARTITION-FUNCTION, POTENTIAL-ENERGY, PRESSURE-DEPENDENCE, RADICAL RECOMBINATION, RATE CONSTANTS, SURFACES, THEORETICAL},
	isbn = {0022-3654},
	url = {<Go to ISI>://A1995TF81100019},
	author = {Pan, J. J. and Senba, M. and Arseneau, D. J. and Gonzalez, A. C. and Kempton, J. R. and Fleming, Donald G.}
}
