ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 1158-1162 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Rotational Barrier for the Geometrical Isomerization of cis-and trans-1,4-DimethylbutatrieneThe synthesis of cis(3a) and trans-1,4-dimethylbutatriene (3b) is described. The activation parameters for the mutual interconversion of the geometrical isomers have been determined: Ea = 31.8 ± 0.3 kcal/mol; A= 1.1 × 1013S-1 (ΔH125°C≠ = 31.0 kcal/mol; ΔH125°C≠ = -1.5 cal/grad × mol). The equilibrium constant was found to be K = 1 in the temperature range 100-150°C.
    Notes: Die Synthese von cis-(3a) und trans-1,4-Dimethylbutatrien (3b) wird beschrieben. Für die wechselseitige Umlagerung der geometrischen isomeren wurden Aktivierungsparameter von Ea = 31.8 ± 0.3 kcal/mol und A= 1.1 × 1013 S-1 (ΔH125°C≠ = 31.0 kcal/mol; ΔS125°C≠ = -1.5 cal/Grad × mol) bestimmt. Im bereich von 100-150°C ist die Gleichgewichtskonstante dieser Reaktion K=1.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...