Results 221 to 230 of about 91,721 (252)
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Ion-Pair Interactions of Lanthanide(III) Complexes in Aqueous Solutions
Inorganic Chemistry, 2000The formation of ion-pair adducts between the cationic complex La(THP)3+ (THP = 1,4,7,10-tetrakis(2-hydroxypropyl)-1,4,7,10-tetraazacyclododecane) and the anionic complexes Tm(DOTA)- (DOTA = 1,4,7,10-tetraazacyclododecane-N,N',N",N"'-tetraacetate), Tm(DTPA)2- (DTPA = diethylenetriamine-N,N,N',N",N"-pentaacetate), Tm(TTHA)3- (TTHA ...
D M, Corsi, H, van Bekkum, J A, Peters
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The Journal of Organic Chemistry, 2007
It is demonstrated that our reported equilibrium treatments that take into account ion-paired guest and non-ion-paired complexes can be applied to competitive complexations. Satisfactory results were obtained for a system with two cationic guests [N,N'-dimethyl-4,4'-biyridinium bis(hexafluorophosphate) (1) and dibenzylammonium hexafluorophosphate (2 ...
Feihe, Huang +2 more
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It is demonstrated that our reported equilibrium treatments that take into account ion-paired guest and non-ion-paired complexes can be applied to competitive complexations. Satisfactory results were obtained for a system with two cationic guests [N,N'-dimethyl-4,4'-biyridinium bis(hexafluorophosphate) (1) and dibenzylammonium hexafluorophosphate (2 ...
Feihe, Huang +2 more
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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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Role of ion-pair interactions on asphaltene stabilization by alkylbenzenesulfonic acids
Journal of Colloid and Interface Science, 2015The dispersion of asphaltenes by dodecylbenzenesulfonic acid (DBSA) has been the subject of several studies in the past. However, it is unclear how these interactions affect the structure of asphaltenes and why asphaltene aggregates are larger in the presence of ionic DBSA.
Lamia, Goual, Mohammad, Sedghi
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Counterion Specificity of Polyelectrolyte Brushes: Role of Specific Ion‐Pairing Interactions
ChemPhysChem, 2018AbstractWe demonstrate here that the properties of poly (2‐(methacryloyloxy) ethyl trimethylammonium chloride) brushes can be tuned by counterion species. When the brushes are exposed to external chloride (Cl−) counterions, obvious dehydration and collapse are only observed at high salt concentrations.
Ran Kou +3 more
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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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Homogeneous interaction of ion-pair states of ClF
Optics and Spectroscopy, 2003The energies, rotational constants, and isotope shifts of vibrational levels of the homogeneously perturbed ion-pair states E, f, β, and Gof the ClF molecule are calculated by the methods of diabatic and adiabatic potentials. The spectroscopic constants of initial diabatic potentials and the parameters of interaction for which the best agreement ...
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Nonadiabatic electronic interactions in the ion-pair states of NeICl
The Journal of Chemical Physics, 1991Nonadiabatic interactions in the NeICl van der Waals complex have been explored in the lowest energy triad of ICl ion-pair states (∼39 000 cm−1). Dispersed fluorescence measurements reveal emission characteristic of multiple ion-pair electronic states, with the relative contributions from the E(0+), β(1), and D′(2) states changing with the initial ICl ...
Stephenson, Thomas Alex +2 more
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Superhydrophobic to Superhydrophilic Wetting Transition with Programmable Ion‐Pairing Interaction
Advanced Materials, 2008Intelligent surfaces with dynamically tunable wettability in response to various external stimuli have recently received special attention due to their potential applications, which range from self-cleaners to microfluidics and biosensors. Ion exchange is a reversible process in which ions are exchanged between cationic or anionic electrolytes and ...
Lim, HS +5 more
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Organic Letters, 2023
Dithienylnitrophenols were synthesized as precursors of π-electronic anions, which were stabilized by intramolecular chalcogen bonding, forming various ion pairs in combination with cations. The modes of solid-state charge-by-charge assemblies, along with solution-state stacking and photoinduced electron transfer behaviors, were modulated by the ...
Miyu Yokoyama +5 more
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Dithienylnitrophenols were synthesized as precursors of π-electronic anions, which were stabilized by intramolecular chalcogen bonding, forming various ion pairs in combination with cations. The modes of solid-state charge-by-charge assemblies, along with solution-state stacking and photoinduced electron transfer behaviors, were modulated by the ...
Miyu Yokoyama +5 more
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