Results 1 to 10 of about 280,989 (285)

Elucidating protonation pathways in CO2 photoreduction using the kinetic isotope effect [PDF]

Nature Communications
The surge in anthropogenic CO2 emissions from fossil fuel dependence demands innovative solutions, such as artificial photosynthesis, to convert CO2 into value-added products.
Shikang Yin, Yiying Zhou, Zhonghuan Liu, Huijie Wang, Xiaoxue Zhao, Zhi Zhu, Yan Yan, Pengwei Huo   +7 more
doaj   +5 more sources

Strong inverse kinetic isotope effect observed in ammonia charge exchange reactions [PDF]

Nature Communications, 2020
Inverse kinetic isotope effects (KIEs) are rarely observed. Here, the authors report an inverse KIE in the charge transfer reaction of $${{\rm{Xe}}}^{+}$$ Xe+ with ammonia.
L. S. Petralia, A. Tsikritea, J. Loreau, T. P. Softley, B. R. Heazlewood   +4 more
doaj   +3 more sources

Intramolecular Hydrogen Atom Transfer in Aminyl Radical at Room Temperature with Large Kinetic Isotope Effect. [PDF]

J Am Chem Soc, 2017
Wang Y, Olankitwanit A, Rajca S, Rajca A.   +3 more
europepmc   +4 more sources

Advances in Kinetic Isotope Effect Measurement Techniques for Enzyme Mechanism Study [PDF]

Molecules, 2013
Kinetic isotope effects (KIEs) are a very powerful tool for investigating enzyme mechanisms. Precision of measurement is the most important factor for KIE determinations, especially for small heavy atom KIEs.
Hong Gu, Shuming Zhang
doaj   +3 more sources

Path Integral Calculation of the Hydrogen/Deuterium Kinetic Isotope Effect in Monoamine Oxidase A-Catalyzed Decomposition of Benzylamine. [PDF]

Molecules, 2019
Monoamine oxidase A (MAO A) is a well-known enzyme responsible for the oxidative deamination of several important monoaminergic neurotransmitters. The rate-limiting step of amine decomposition is hydride anion transfer from the substrate α–CH2 group to ...
Brela MZ, Prah A, Boczar M, Stare J, Mavri J.   +4 more
europepmc   +2 more sources

Sensitive and Accurate ¹³C Kinetic Isotope Effect Measurements Enabled by Polarization Transfer. [PDF]

J Am Chem Soc, 2017
Polarization transfer is demonstrated as a sensitive technique for the measurement of isotopic fractionation of protonated carbons at natural abundance.
Kwan EE, Park Y, Besser HA, Anderson TL, Jacobsen EN.   +4 more
europepmc   +2 more sources

Improving the Luminescence and Stability of Carbon-Centered Radicals by Kinetic Isotope Effect [PDF]

Molecules, 2023
The kinetic isotope effect (KIE) is beneficial to improve the performance of luminescent molecules and relevant light-emitting diodes. In this work, the influences of deuteration on the photophysical property and stability of luminescent radicals are ...
Zhichao Ma, Lintao Zhang, Zhiyuan Cui, Xin Ai   +3 more
doaj   +2 more sources

Extraordinarily large kinetic isotope effect on alkene hydrogenation over Rh-based intermetallic compounds [PDF]

Science and Technology of Advanced Materials, 2019
A series of Rh-based intermetallic compounds supported on silica was prepared and tested in alkene hydrogenation at room temperature. H2 and D2 were used as the hydrogen sources and the kinetic isotope effect (KIE) in hydrogenation was studied.
Shinya Furukawa, Pingping Yi, Yuji Kunisada, Ken-Ichi Shimizu   +3 more
doaj   +2 more sources

Dual Studies on a Hydrogen-Deuterium Exchange of Resorcinol and the Subsequent Kinetic Isotope Effect. [PDF]

J Chem Educ, 2014
An efficient laboratory experiment has been developed for undergraduate students to conduct hydrogen–deuterium (H–D) exchange of resorcinol by electrophilic aromatic substitution using D2O and a catalytic amount of H2SO4. The resulting labeled product is
Giles R, Kim I, Chao WE, Moore J, Jung KW.   +4 more
europepmc   +2 more sources

Kinetic Isotope Effect in Low-Energy Collisions between Hydrogen Isotopologues and Metastable Helium Atoms: Theoretical Calculations Including the Vibrational Excitation of the Molecule. [PDF]

J Chem Theory Comput, 2021
Pawlak M, Żuchowski PS, Jankowski P.
europepmc   +3 more sources