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Ionenpaargleichgewichte komplexer Carbeniumionensalze als Modelle für die aktive Spezies bei der kationischen Polymerisation (1982)

Heublein, Günther ; Grimmer, Cornelia

New York, NY : Wiley-Blackwell

Journal für Praktische Chemie/Chemiker-Zeitung 324 (1982), S. 973-977

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ISSN: 0021-8383

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Ion-pair Equilibria of Complex Carbenium Ion Salts as Models of the Active Species in Cationic PolymerizationThe dissociation equilibria of complex carbenium ion salts [(C6H5)3C⊕, C7H7⊕MtX⊖n+1] have been determined in chloroform, dichloroethane and nitromethane from conductance measurements. The dissociation constants remain almost unchanged for different anions, are however influenced markedly by the polarity of the solvent.The fractions of free and paired ions in these solvents have been calculated.Furthermore the enthalpies and entropies of dissociation have been evaluated.

Additional Material: 6 Tab.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/prac.19823240616

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