Ion-pairing in polyoxometalate chemistry: impact of fully hydrated alkali metal cations on properties of the keggin [PW12O40]3− anion

The [PW12O40]3−[M+(H2O)16]3 is a “hydrogen bonded” ion-pair complex for M = Li, Na and K, but is a “contact” ion-pair complex for M = Rb and Cs, intermolecular charge transfer from the solvated counter cations M+(H2O)16 to the anion [PW12O40]3−.

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Thermodynamic analysis of ion-pair partition of methyl orange anion with alkali metal cations in an octanol-water system.

Chemical and Pharmaceutical Bulletin ◽

10.1248/cpb.36.2759 ◽

1988 ◽

Vol 36 (8) ◽

pp. 2759-2765 ◽

Cited By ~ 4

Author(s):

YUKO YOSHIKAWA ◽

HIROSHI TERADA

Keyword(s):

Methyl Orange ◽

Alkali Metal ◽

Thermodynamic Analysis ◽

Water System ◽

Metal Cations ◽

Ion Pair ◽

Alkali Metal Cations

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The Effect of Alkali Metal Cations on The Structure of Dissolved Silicate Oligomers

MRS Proceedings ◽

10.1557/proc-111-107 ◽

1987 ◽

Vol 111 ◽

Cited By ~ 4

Author(s):

Alon V. McCormick ◽

A. T. Bell ◽

C. J. Radke

Keyword(s):

Nmr Spectroscopy ◽

Alkali Metal ◽

Base Composition ◽

Ion Pairs ◽

Metal Cations ◽

Ion Pairing ◽

Alkali Metal Cations ◽

Silicate Anion ◽

Cation Size ◽

Dissolved Silicate

AbstractBy means of 29Si spectroscopy, it is established that the distribution of silicate anions in alkaline silicate solutions is a moderate function of base composition. At a fixed SiO2. concentration and silicate ratio, the proportion of Si present in oligomeric and cage-like structures increases in progressing from Li to Cs hydroxide. Interactions between alkali metal cations and silicate anions are investigated using NMR spectroscopy of the cations; in this way the concentration of ion pairs is measured as a function of cation size. As a result the silicate redistribution is ascribed to cation-silicate anion pairing and to a higher selectivity for ion pairing by large silicate anions as cation size increases.

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The use of gas solubilities for the determination of solvation numbers and to detect ion pairing involving alkali metal cations

Journal of the American Chemical Society ◽

10.1021/ja00441a013 ◽

1976 ◽

Vol 98 (25) ◽

pp. 7955-7959 ◽

Cited By ~ 12

Author(s):

Wilson Martir ◽

Antonio E. Alegria ◽

Gerald R. Stevenson

Keyword(s):

Alkali Metal ◽

Metal Cations ◽

Ion Pairing ◽

Alkali Metal Cations ◽

Solvation Numbers ◽

Gas Solubilities

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ChemInform Abstract: ION-PAIRING OF SUBSTITUTED 1,3-DIPHENYLALLYL CARBANIONS WITH ALKALI-METAL CATIONS

Chemischer Informationsdienst ◽

10.1002/chin.197606052 ◽

1976 ◽

Vol 7 (6) ◽

pp. no-no

Author(s):

GEOFFREY C. GREENACRE ◽

RONALD N. YOUNG

Keyword(s):

Alkali Metal ◽

Metal Cations ◽

Ion Pairing ◽

Alkali Metal Cations

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The effect of ring sizes and alkali metal cations on interaction energy, charge transfer and nonlinear optical properties of crown ether derivatives

RSC Advances ◽

10.1039/c5ra01145k ◽

2015 ◽

Vol 5 (38) ◽

pp. 30107-30119 ◽

Cited By ~ 10

Author(s):

Ying Gao ◽

Rong-Lin Zhong ◽

Hong-Liang Xu ◽

Shi-Ling Sun ◽

Zhong-Min Su

Keyword(s):

Optical Properties ◽

Charge Transfer ◽

Optical Property ◽

Alkali Metal ◽

Interaction Energy ◽

Nonlinear Optical ◽

Nonlinear Optical Property ◽

Energy Charge ◽

Metal Cations ◽

Alkali Metal Cations

A series of the crown ethers are designed to explore the effect of ring sizes and the nature of alkali metal cations doping on the interaction energy, charge transfer and nonlinear optical property.

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