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  • Chemistry  (3)
  • *Trans-Activators
  • JGR
  • 1990-1994
  • 1985-1989  (3)
  • 1986  (3)
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  • 1990-1994
  • 1985-1989  (3)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Vapor-liquid equilibria from perturbation gas chromatography. Part I: Multicomponent parameter estimation (1986)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 32 (1986), S. 1948-1953 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Elution times determined from perturbation chromatography experiments are functions of all sorbing species isotherms through the concentration partial derivatives. Measurements at a sufficient number of appropriate compositions along with isotherm models and adjustable parameters allow reduction of the retention time data to VLE by a nonlinear parameter estimation procedure described in this paper. The method can be implemented for both empirical isotherm models, which can be used to minimize model deficiencies, and for theoretical thermodynamic models, which have extrapolation potential and may require fewer parameters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690321203
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  • 2
    Electronic Resource
    Electronic Resource
    Vapor-liquid equilibria from perturbation gas chromatography. Part II: Application to the polybutadiene/benzene/cyclohexane ternary system (1986)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 32 (1986), S. 1954-1962 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This work brings together recent gas chromatography experiments and theory involving multiple sorbing species at finite concentration, and theories for multicomponent polymer solutions by means of the parameter estimation procedure of Part 1. Results quantitatively describe the wide variation in peak retention times that are caused by phase equilibrium and chromatographic interference, the best solution models doing so to within or near experimental error. The chromatographic method is capable of detecting differences and peculiarities in the various polymer solution models in both the accuracy of the calculated retention times and the sensitivities of the calculations to the model parameters. Perturbation chromatography offers some unique capabilities for multicomponent vapor-liquid equilibrium determinations.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690321204
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesen antileukämischer (Indolylvinyl)indole (1986)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1986 (1986), S. 2164-2178 
    Details
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Syntheses of Antileukemic (Indolylvinyl)indolesThe dinitrile 8a with the skeleton of 2-[(E)-2-(2-indolyl)vinyl]indole is synthesized by various routes; by a simple procedure [(6-cyano-2-indolyl)methyl]- and [(5-cyano-2-indolyl)methyl]triphenylphosphonium bromide (4d and 5c) are prepared and with them the dinitriles 8a, 9a, and 10a and further the derived antileukemic imidazolinyl compounds 8b, 9b, and 10b. With the isomeric skeletons of 6-[(E)-2-(2-indolyl)vinyl]indole and of 6-[(E)-2-(6-indolyl)vinyl]indole the imidazolinyl compounds 18b and 19b are synthesized.
    Notes: Das Dinitril 8a mit dem Gerüst des 2-[(E)-2-(2-Indolyl)vinyl]indols wird auf verschiedenen Wegen synthetisiert; in einfacher Verfahrensweise werden [(6-Cyan-2-indolyl)methyl]- und [(5-Cyan-2-indolyl)methyl]triphenylphosphoniumbromid (4d und 5c) dargestellt und mit ihnen die Dinitrile 8a 9a und 10a sowie ferner die zugehörigen, antileukämischen Imidazolinyl-Verbindungen 8b, 9b und 10b. Mit den isomeren Gerüsten des 6-[(E)-2-(2-Indolyl)-vinyl]indols und des 6-[(E)-2-(6-Indolyl)vinyl]indols werden die Imidazolinyl-Verbindungen 18b und 19b synthetisiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.198619861210
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