Results 271 to 280 of about 8,535,977 (341)

Thermal energy ion-molecule association reactions involving sodium ions

The Journal of Physical Chemistry, 1989
Rate coefficients are reported for the association of HCl, CO{sub 2}, NH{sub 3}, ND{sub 3}, SO{sub 2}, and CH{sub 3}OH with Na{sup +}. At ambient temperature three-body rates in helium are found to range from 1.6 {times} 10{sup {minus}30} to 6.3 {times} 10{sup {minus}28} cm{sup 6}/s, increasing in magnitude in the order of the associated ligand listed ...
R. Passarella, A. W. Castleman
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Trimethoprimium-Phosphotungstate Ion Associate as Ion-Exchanger For Trimethoprimium Ion-Selective Electrode

Analytical Letters, 1996
Abstract A PVC membrane electrode selective for trimethoprimium cation based on trimethoprimium-phosphotungstate (TM)3 PT ion associate is prepared. The electrode shows a linear response with Nernstian slope over the range of 2.7×10−6-10−2M. Calibration graph slope of the electrode is 59 mV/TM concentration decade when preconditioned by soaking in ...
M. Aboudan, A. F. Shoukry, Y. M. Issa
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Associated and single iron ions in ion-exchanged faujasite zeolites

Hyperfine Interactions, 1992
Different forms of extraframework ions present in faujasite zeolite prepared by Fe2+ ion exchange at different pH values and with subsequent reduction in hydrogen have been studied. “Low-coordination” Fetetr2+ ions can be found either in the form of single ions accessible for chemisorption, or in the form of ion associations from which centers of the ...
K. Lázár, I. Manninger, B. M. Choudary
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Effect of anion identity on ion association and dynamics of sodium ions in non-aqueous glyme based electrolytes-OTf vs TFSI.

Journal of Chemical Physics, 2021
Ke Li, Visal Subasinghege Don, Chris S Gupta, R. David, Revati Kumar   +4 more
semanticscholar   +1 more source

RARE-EARTH ACETATE ION ASSOCIATION

Canadian Journal of Chemistry, 1965
not available
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Three-body ion-neutral association

Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1974
Consideration is given to the calculation of the rate coefficient of processes of the type A++ B + C → AB++ C. Classical mechanics is used. The impulse approximation is adopted and hard-sphere interactions are taken to describe C – A+and C – B collisions.
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Ion Currents Associated with Membrane Receptors

2012
The coordination of cellular physiology, organ development, life cycle phases and symbiotic interaction, as well as the triggering of a response to changes is the environment, in plants depends on the exchange of molecules that function as messengers. Binding of these messenger molecules to receptor proteins, is transduced through a network of second ...
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Association constants for ion pairs

Journal of Solution Chemistry, 1986
The isodielectric rule is a corollary of the theoretical equation KΛ=(4πNa3/3000) exp (e2/aDkT) derived for primitive model electrolytes. Real systems, especially those involving small ions in structured solvents, do not follow the rule because energies of short range system-specific interactions contribute to Δg, the difference in free energy between ...
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Ion association in 2-(chloromethyl)tetrahydrofuran

Electrochimica Acta, 1985
Abstract Conductivities were measured at 298.15 K for LiClO 4 , LiAsF 6 , Bu 4 NCl, Bu 4 NClO 4 , Bu 4 NBPh 4 and Ph 4 AsCl in 2-(chloromethyl)tetrahydrofuran, and for LiAsF 6 in tetrahydrofuran. Comparing these results with literature data for THF and 2-methyltetrahydrofuran systems, it is found that the nature of the anion plays an important role
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Ion Association

Journal of The Electrochemical Society, 1964
C. W. Davies, Theodore Shedlovsky
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