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Highly soluble complexes of [FeH6]4- and ion pairing interactions
Journal of Organometallic Chemistry, 1998Abstract The complex hydride, [FeH 6 ][MgX(THF) 2 ] 4 ( 1 ), (X=Br 0.88 Cl 0.12 ) serves as a model for the influences affecting the solubility of polyhydridic complex hydrides. ( 1 ) is converted to [FeH 6 ][MgOR(THF) n ] 4 ·4LiX ( 2 ) and ( 3 ) (R= t Bu and Et, respectively) upon treatment with LiOR in benzene solution. The solubilities in THF are
Donald E. Linn Jr, Sidney G. Gibbins
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Chromium Ion Pair Interactions in the Paramagnetic Resonance Spectrum of Ruby
Journal of Applied Physics, 1961The paramagnetic resonance spectrum of Cr3+ pairs in ruby which interact via exchange and dipolar forces have been studied at 15.74 kMc in the temperature range 1.2° to 700°K. Theoretical analysis predicts and experiments confirm that relatively distant neighbors with negligible exchange coupling give rise to resonance lines which cluster around ...
H. Statz +4 more
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Optical studies of Rare Earth ion pairs: interaction and energy transfer
International Conference on Luminescence - 1984, 1984Rare earth ion pairs in isolators produce satellites for all optical transitions as a result of both the crystal field change induced at the site of each ion by its neighbour and the interaction between the two ions. The very narrow lines of diluted crystals make possible the selective excitation of these pairs and thus the direct study of the ...
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Sodium chloride ion pair interaction in water: computer simulation
Chemical Physics Letters, 1984Abstract The thermodynamics and structure of a sodium chloride ion pair in liquid water are studied as a function of the ion pair separation. Distinct minima in the free energy of the system are found for contact and solvent separated ion geometries.
Max Berkowitz +3 more
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Fluorescence study of ion pair interactions on hydrocarbon bonded surfaces
Analytical Chemistry, 1985Utilisation du sel d'ammonium de l'acide aniline-8 naphtalenesulfonique pour etudier les interactions de paires d'ions avec des surfaces Lichrosorb a alkylsilanes, en chromatographie liquide ...
Sally D. Dowling, W. Rudolf. Seitz
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The Journal of Physical Chemistry B, 2005
The intermolecular interaction energies of nine ion pairs of room temperature ionic liquids were studied by MP2/6-311G level ab initio calculations. The magnitude of the interaction energies of 1-ethyl-3-methylimidazolium (emim) complexes follows the trend CF(3)CO(2)(-) > BF(4)(-) > CF(3)SO(3)(-) > (CF(3)SO(2))(2)N(-) approximately PF(6)(-) (-89.8, -85.
Seiji, Tsuzuki +3 more
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The intermolecular interaction energies of nine ion pairs of room temperature ionic liquids were studied by MP2/6-311G level ab initio calculations. The magnitude of the interaction energies of 1-ethyl-3-methylimidazolium (emim) complexes follows the trend CF(3)CO(2)(-) > BF(4)(-) > CF(3)SO(3)(-) > (CF(3)SO(2))(2)N(-) approximately PF(6)(-) (-89.8, -85.
Seiji, Tsuzuki +3 more
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Weak Interactions., Ionic H-Bonds, and Ion Pairs
1997Abstract The classic picture of a H-bond involves the approach of a pair of neutral molecules. One contains a hydrogen atom covalently attached to a highly electronegative atom like O or F. The other molecule also contains an electronegative atom, associated with which is at least one lone pair of nonbonding electrons.
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Origin of 19F hyperfine interaction in Mn2+ ion and ion pair
Physica B+C, 1980Abstract The theory of transferred hyperfine interaction at the F - site in the mixed σ - and π - bonding Mn 2+ F - and Mn 2+ F - Mn 2+ systems is developed from first principles. The transfer of electrons from the occupied p and s orbitals of F - ion to the empty d orbits on the Mn 2+ ion is considered and all the integrals of the kinetic ...
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Enhanced ionic interaction in narrow pores and ion pair formation
European Biophysics Journal, 1994The same physical phenomenon that gives rise to the increase in the electrostatic self-energy of an ion within a narrow water-filled pore is shown to result in interionic electrical interactions within the pore that are much stronger and of longer range than those between the same ions in the same solution in bulk.
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Pairing Smoking Cessation With Lung Cancer Screening May Save Lives
Ca-A Cancer Journal for Clinicians, 2021Mike Fillon
exaly