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  • 1
    Electronic Resource
    Electronic Resource
    Frequency dependent conductance and dielectric permittivity (1990)
    Springer
    Journal of solution chemistry 19 (1990), S. 945-955 
    Details
    ISSN: 1572-8927
    Keywords: Electrolyte solution ; frequency conductance ; dielectric permittivity ; ion pairing ; rotation dipoles ; strong coupling ; feedback or echo theory
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Starting from the basic equation for the pair distribution function in nonequilibrium which takes into account the echo effect, the theory of electrolytes in low frequency fields is investigated. For explicit calculations of the pair distribution functions, the strong coupling approximation (SCA) for distances smaller than the Bjerrum distance is used. The result is discussed as the effect of ionic motion on the complex permittivity of the solution. In the limiting case of large values of the Bjerrum parameier it identifies with the effect of rotating ion pairs and allows an evaluation of the increase on the static permittivity of the electrolyte solutions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00653079
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  • 2
    Electronic Resource
    Electronic Resource
    Ionic interactions in solutions. IV. Conductance theory of binary electrolytes for hamiltonian models (1979)
    Springer
    Journal of solution chemistry 8 (1979), S. 809-833 
    Details
    ISSN: 1572-8927
    Keywords: Conductance ; binary electrolytes ; feedback or echo effect ; strong coupling approximation ; Hamiltonian models ; Gurney cosphere ; effects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract From the basic equations for the pair distribution function in nonequilibrium, solution methods are elaborated. It is verified that the distribution functions depend on conductance coefficients, which lead to feedback loop or echo effects. For explicit calculation the strong-coupling approximation for distances smaller than the Bjerrum distance proves to be practical and efficient. It can be applied to any Hamiltonian models for the system without complicated mathematics. A method of deriving information concerning the Gurney cosphere overlap effects is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00648580
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  • 3
    Electronic Resource
    Electronic Resource
    Electrolytic conductance for Gurney-Friedman models (1979)
    Springer
    Journal of solution chemistry 8 (1979), S. 53-82 
    Details
    ISSN: 1572-8927
    Keywords: Conductance ; Debye-Hückel approximations ; mean spherical approximations ; Gurney-Fiedman models ; alkali halides ; ionic association
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Starting from hierarchy of diffusion equations for the distribution functions in coordinate space, the general theory of conductance is developed and applied to Gurney-Friedman models for ion-ion interactions. The interaction potentials used consist of a hard core with Pauling radii and a Gurney cosphere with a steplike interaction law converging to the Coulomb law outside the Gurney sphere. For the simplest case of step potentials explicit formulas for the conductivity are given. For higher concentrations an integral equation corresponding to the mean-spherical approximation in equilibrium is proposed. The theory is compared with experimental data for 17 alkali halide electrolytes by fitting the Gurney parameters. It is shown that the variant of the theory which includes the feedback of the relaxation and electrophoretic forces describes also the data for associating 2-2 electrolytes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00646809
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  • 4
    Electronic Resource
    Electronic Resource
    Activation by nonlinear oscillations and solitonic excitations (1993)
    Springer
    Journal of statistical physics 70 (1993), S. 49-60 
    Details
    ISSN: 1572-9613
    Keywords: Nonlinear oscillations ; solitonic excitations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Local excitations in molecular systems are studied taking into account the influence of soft impurities. The dynamics of activation processes (high-energy events) due to nonlinear mechanisms is studied. The following examples of classical macroscopic systems with strong nonlinear interaction are investigated: 1D Toda chains, 1D Morse rings, and 3D systems of hard spheres including impurities. It is shown that solitonlike excitations may lead to the concentration of energy at definite sites (weak springs or soft spheres). The accumulation of energy is mainly due to soliton-fusion effects. In thermal equilibrium an optimum temperature exists, where the thermally averaged potential energy is preferably partitioned to the soft springs embedded into a hard-spring solvent. Further, we show that the effect of thermal energy localization and the temperature dependence also persists for solutions of soft spheres in hard-sphere solvents.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01053953
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  • 5
    Electronic Resource
    Electronic Resource
    Chemical evolution. Origin of the elements, molecules and living systems. Von S. F. Mason. Clarendon Press, Oxford, 1991. IX, 317 S., geb. £19.50. - ISBN 0-19-855272-6 (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 104 (1992), S. 1569-1570 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19921041156
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  • 6
    Electronic Resource
    Electronic Resource
    Book Review: Chemical Evolution. Origin of the Elements, Molecules and Living Systems. By S. F. Mason. (1992)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 31 (1992), S. 1533-1534 
    Details
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.199215331
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