Results 241 to 250 of about 107,082 (295)

Catalytic Enantioselective Perezone-Type [5 + 2] Cycloaddition. [PDF]

J Am Chem Soc
Yang L, Zhang C, Sun J.
europepmc   +1 more source

A planar chiral organoselenium enabled enantioselective intramolecular oxidation of trisubstituted olefins. [PDF]

Nat Commun
Zhu W, Fu FY, Xu KY, Zheng WH.
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Theoretical calculations of kinetic isotope effects

, 2000
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Accurate Single-Molecule Kinetic Isotope Effects

Journal of the American Chemical Society, 2022
An accurate single-molecule kinetic isotope effect (sm-KIE) was applied to circumvent the inherent limitation of conventional ensemble KIE by using graphene-molecule-graphene single-molecule junctions. In situ monitoring of the single-molecule reaction trajectories in real time with high temporal resolution has the capability to characterize the deeper
Yilin Guo, Chen Yang, Huiping Li, Lei Zhang, Shuyao Zhou, Xin Zhu, Huanyan Fu, Zhizhou Li, Zhirong Liu, Chuancheng Jia, Zitong Liu, Wenguang Zhu, Fanyang Mo, Deqing Zhang, Xuefeng Guo   +14 more
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Kinetic hydrogen isotope effect

Journal of Chemical Education, 1986
This note describes three simple demonstrations or laboratory exercises that illustrate kinetic hydrogen isotopic effects.
David A. Binder, Robert Eliason
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Kinetic Isotope Effects in Multiple Proton Transfer

ChemInform, 2005
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Smedarchina, Zorka, Siebrand, Willem, Fernandez-Ramos, Antonio   +2 more
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Interpretation of Transient-State Kinetic Isotope Effects

Biochemistry, 1996
In contrast to steady-state kinetic isotope effects (KIE's), transient-state KIE's are dependent on both time and signal source. We developed a theory which predicts the behavior of transient-state KIE's, permits the calculation of the intrinsic KIE, and makes possible the assignment of various optical signals to either pre- or post-hydride transfer ...
H F, Fisher, S K, Saha
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Extending Limits of Chlorine Kinetic Isotope Effects

The Journal of Organic Chemistry, 2012
Chlorine kinetic isotope effects exceeding semiclassical limits were observed in enzyme-catalyzed reactions, but their source has not been yet identified. Herein we show that unusually large chlorine kinetic isotope effects are associated with reactions in which chlorine is the central atom that is being passed between two heavy atoms.
Katarzyna, Świderek, Piotr, Paneth
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Temperature Dependences of Kinetic Isotope Effects

The Journal of Chemical Physics, 1971
Model-reaction calculations are used to investigate the expected incidence of temperature-dependence anomalies produced by the harmonic-vibrational contributions to kinetic isotope effects. These “anomalies” are defined as deviations from a smooth-monotonic log–log plot of isotopic rate-constant ratio vs temperature. Such deviations include inflections,
P. Christian Vogel, Marvin J. Stern
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Kinetic-isotope effects in thermal explosions

Thermochimica Acta, 1982
Abstract Kinetic-isotope effects can be used to detect the specific functional groups involved in the elementary reactions of complex explosives decomposition processes. Isothermal kinetics methods must be used to correlate component reactions with specific reaction regimes.
R.N. Rogers, J.L. Janney, M.H. Ebinger
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