Results 11 to 20 of about 388,039 (180)

Non-Covalent Isotope Effects

The Journal of Physical Chemistry Letters, 2023
In this Perspective, we present examples of isotope effects that originate from noncovalent interactions, mainly hydrogen bonding, electrostatics, and confinement. They are traditionally widely used in isotopic enrichment processes, as well as in studies of mechanisms of different (bio)chemical and physical phenomena. We then show the emerging areas of
Mateusz Pokora, Agata Paneth, Piotr Paneth   +2 more
openaire   +3 more sources

Strontium isotope effect on Solid-Liquid extraction system using a polymer resin with 2.2.2-Cryptand anchor groups [PDF]

مجله علوم و فنون هسته‌ای, 2020
The chemical isotope exchange with macrocyclic polyethers is one of the relatively new methods for isotope separation. These separations are based on the phenomenon of isotope effect, in which the kinetic and the stability of the complex formation ...
E. Zolfonoun
doaj   +1 more source

Intrinsic and structural isotope effects in Fe-based superconductors [PDF]

, 2010
The currently available results of the isotope effect on the superconducting transition temperature T_c in Fe-based high-temperature superconductors (HTS) are highly controversial.
A. Bussmann-Holder, C. P. Poole, H. Keller, J. P. Franck, M. Bendele, R. Khasanov   +5 more
core   +1 more source

Isotope Effect in Thermal Conductivity of Polycrystalline CVD-Diamond: Experiment and Theory

Crystals, 2021
We measured the thermal conductivity κ(T) of polycrystalline diamond with natural (natC) and isotopically enriched (12C content up to 99.96 at.%) compositions over a broad temperature T range, from 5 to 410 K.
Alexander V. Inyushkin, Alexander N. Taldenkov, Victor G. Ralchenko, Andrey P. Bolshakov, Alexander V. Khomich   +4 more
doaj   +1 more source

Intermolecular Interactions and Spectroscopic Signatures of the Hydrogen-Bonded System—n-Octanol in Experimental and Theoretical Studies

Molecules, 2022
n-Octanol is the object of experimental and theoretical study of spectroscopic signatures and intermolecular interactions. The FTIR measurements were carried out at 293 K for n-octanol and its deuterated form.
Michał Pocheć, Katarzyna M. Krupka, Jarosław J. Panek, Kazimierz Orzechowski, Aneta Jezierska   +4 more
doaj   +1 more source

Solubility isotope effects in aqueous solutions of methane [PDF]

, 2002
The isotope effect on the Henry's law coefficients of methane in aqueous solution (H/D and C-12/C-13 substitution) are interpreted using the statistical mechanical theory of condensed phase isotope effects.
A. A. H. Pádua, Benson B. B., Dang L. X., G. Jancsó, Harting P., J. Mink, J. N. Canongia Lopes, Jancsó G., M. F. Costa Gomes, Rouhi A. M., Z. Bacsik   +10 more
core   +2 more sources

Analytical modelling of stable isotope fractionation of volatile organic compounds in the unsaturated zone [PDF]

, 2011
Analytical models were developed that simulate stable isotope ratios of volatile organic compounds (VOCs) near a point source contamination in the unsaturated zone. The models describe diffusive transport of VOCs, biodegradation and source ageing.
Abriola, Baehr, Bouchard, Bouchard, Bouchard, Bouchard, Broholm, Cerling, Christophersen, Clark, Conant, Craig, Daniel Bouchard, Daniel Hunkeler, Davis, Davis, Elsner, Fabien Cornaton, Falta, Franzmann, Gaganis, Grathwohl, Harrington, Hers, Hoff, Hohener, Hohener, Hunkeler, Hunkeler, Jin, Jost, Jury, Karapanagioti, Kiss, Kuder, Lahvis, Meckenstock, Millington, Moldrup, Ostendorf, Parker, Pasteris, Patrick Höhener, Schmidt, Schwarzenbach, Schüth, Sherwood Lollar, Slater, Smith, Van de Steene, Wang, Werner, Werner   +52 more
core   +3 more sources

Crystal Structure and Thermal Behavior of SbC₂O₄OH and SbC₂O₄OD

Inorganics, 2020
The order of OH groups in the crystal structure of SbC2O4OH, a potential precursor in the synthesis of ternary oxides, was debated. Neutron diffraction on the deuteride SbC2O4OD revealed disordered OD groups with half occupation for deuterium atoms on ...
Holger Kohlmann, Anne Rauchmaul, Simon Keilholz, Alexandra Franz   +3 more
doaj   +1 more source

Iron isotope effect on the superconducting transition temperature and the crystal structure of FeSe_1-x [PDF]

, 2010
The Fe isotope effect (Fe-IE) on the transition temperature T_c and the crystal structure was studied in the Fe chalcogenide superconductor FeSe_1-x by means of magnetization and neutron powder diffraction (NPD).
, Bussmann-Holder A Simon A Keller H Bishop A R, E Pomjakushina, H Keller, K Conder, Khasanov R, M Bendele, Margadonna S, Mizuguchi Y, R Khasanov, V Pomjakushin   +10 more
core   +1 more source

1,2-3H-Cholesterol as a tracer in studies of human cholesterol metabolism

Journal of Lipid Research, 1967
1,2-3H-Cholesterol was fed to a subject together with 4-14C-cholesterol at a known 3H/14C ratio. The ratio was satisfactorily preserved in cholesterol recovered from plasma, red cells, and bile, and in bile acids of bile.Isotopic fractionation was seen ...
Peter D.S. Wood, Daphne Myers, Yuen-Ling Lee, Ryuzo Shioda, Laurance W. Kinsell   +4 more
doaj   +1 more source