Conductance of Electrolytes in Anhydrous Acetone

Savedoff, Lydia G.

doi:10.1021/ja00956a007

Cited by 44 publications

(18 citation statements)

References 2 publications

(3 reference statements)

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“…The order of halide-ion conductances in ME is Cl > Br, which is the same as that found in acetone. 6 The Stokes radii for these ions in ME are greater than the crystallographic radii, indicating that they may be solvated in this solvent. However, with the exception of the Na+ ion, the Stokes radii ar: much less than the sum of the radii of the ion and the solvent molecule (rME = 3.14 A)," indicating that they are only slightly solvated in this solvent medium, though nothing can be said definitely in the absence of precise transference number data.…”

Section: Discussionmentioning

confidence: 96%

Conductance studies of alkali-metal chlorides and bromides in 2-methoxyethanol at 25 °C

Nandi¹,

Das²,

Hazra³

1989

J. Chem. Soc., Faraday Trans. 1

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The conductances of a number of alkali-metal chlorides and bromides, MX(M+ = Li, Na, K, Rb, Cs and X-= C1, Br) have been measured in 2-methoxyethanol (ME) at 25 "C and the data have been analysed by the 1978 Fuoss Conductance equation in terms of the limiting molar conductance AO, the association constant, KA and the association distance, R.Single ion conductivities have been determined using Bu,NBPh, and Bu,NBBu, as reference electrolytes. Strong association was found for all these salts in ME and the limiting conductances (Ao) were in the order Li > Na < K < Rb < Cs and C1 > Br. Evaluation of Stokes radii indicates that NaCl and NaBr form ion pairs with fully solvated ions while in other cases some solvent molecules are perhaps included in the ion pair.2-Methoxyethanol (ME) has attracted much attention in recent years as a solvent medium for various electrochemical investigations. ' Although a number of precise conductance measurements of alkali-metal halides in other solvents are known in the literat~re,~-' relatively few studies of such a nature have been made in 2-methoxyethanol. In this paper an attempt has been made to reveal the nature of ion-solvent interactions of alkali-metal halides with 2-methoxyethanol through the measurement of their conductances at 25 "C. Since transference number data for solutions of these salts are lacking in ME, single ion conductivities have been evaluated using two reference electrolytes, uiz. Bu,NBBu, and Bu,NBPh,, in an effort to provide reliable values of ionic mobilities.

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Section: Discussionmentioning

confidence: 96%

Conductance studies of alkali-metal chlorides and bromides in 2-methoxyethanol at 25 °C

Nandi¹,

Das²,

Hazra³

1989

J. Chem. Soc., Faraday Trans. 1

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“…Therefore, for final calculations we used only the 8 most diluted HCl solutions, and fixed the value Λ o = 193.3 S cm 2 mol −1 . The latter was estimated using Kohlrausch's law and Walden's rule, utilizing the literature data for tetra‐ n ‐butylammonium chloride and picrate in AC 38–40 and our data for picric acid in the mixed AC + DMSO solvent. The K overall value for picric acid was found by treating the experimental data within the concentration range from 1.5 × 10 −4 to 2.5 × 10 −3 M. An attempt to assume the formation of HA

_{2}^{−}

species resulted in statistically insignificant values of the corresponding formation constants and limiting conductivities.…”

Section: Resultsmentioning

confidence: 99%

A generic framework for constructing cross‐realm C2C‐PAKA protocols based on the smart card

Xu¹,

Zhu²,

Jin³

2011

Concurrency and Computation

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SUMMARYA cross-realm client-to-client password-authenticated key agreement (C2C-PAKA) protocol allows network clients from different realms managed by different servers to agree on a session key in an authentic manner based on easily memorizable passwords. In this paper, we present a generic framework for constructing a cross-realm C2C-PAKA protocol from any secure smart card-based password authentication (PA-SC) protocol. The security proof of our construction can be derived from the underlying PA-SC protocol employing the same assumptions. Our generic framework appears to be the first one with provable security. In addition, compared with similar protocols, the instantiation of our construction achieves improved efficiency.

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“…Thus it might be argued that the apparent increased rate of product formation oia the ion-pair route ( k , / k , = ca. [20][21][22][23][24][25][26][27][28][29][30] in methylene chloride or acetone solvent is, in itself, evidence for the importance of bond making between Xand Fe. However, the effect could be attributed to changes in ground and transition-state solvation for the two concurrent paths of Scheme 3.…”

Section: Resultsmentioning

confidence: 99%

Kinetics and mechanism of halide promoted migratory CO insertion of fac-[FeMe{o-C6H4(AsMe2)2}(CO)3]ClO4

Earle¹,

Jablonski²

1986

J. Chem. Soc., Dalton Trans.

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Conductance of Electrolytes in Anhydrous Acetone

Abstract: The conductances of a number of lithium and tetra-n-butylammonium salts in anhydrous acetone were measured at 25°and the data analyzed by the Shedlovsky method. The limiting conductances (A0) and the ionpair dissociation constants {Ky> X 104) are as follows:

Cited by 44 publications

References 2 publications

Conductance studies of alkali-metal chlorides and bromides in 2-methoxyethanol at 25 °C

Conductance studies of alkali-metal chlorides and bromides in 2-methoxyethanol at 25 °C

A generic framework for constructing cross‐realm C2C‐PAKA protocols based on the smart card

Kinetics and mechanism of halide promoted migratory CO insertion of fac-[FeMe{o-C6H4(AsMe2)2}(CO)3]ClO4

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