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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 225 (1995), S. 51-61 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die katalytische Oligomerisation von 1-Decen wurde mit Komplexverbindungen mehrerer Übergangsmetalle (Co(II), Co(III), Zr(IV), Ti(IV), Cr(III), V(V)) und Alkyl-aluminiumhalogeniden als Cokatalysatoren durchgeführt. Mit einem Chrom(III)-Et3Al2Cl3-Katalysatorsystem konnten Dimere (C20), Trimere (C30) und Tetramere (C40) von 1-Decen erhalten werden. Die kinematischen Viskositäten und Fließpunkte der hydrierten Oligomere wurden bestimmt und mit den Werten handelsüblicher Proben verglichen. Ein Mechanismus für die Oligomerisation von 1-Decen mit diesem Katalysatorsystem wird vorgeschlagen.
    Notes: The catalytic oligomerization of 1-decene has been carried out employing several transition metal complexes of Co(II), Co(III), Zr(IV), Ti(IV), Cr(III), V(V) in combination with alkyl aluminum halides as cocatalysts. The chromium(III)-Et3Al2Cl3 system exhibits good oligomerizing activity yielding dimers (C20), trimers (C30) and tetramers (C40) of 1-decene. The kinematic viscosities and pour points of hydrogenated oligomers have been determined and compared with those of commercial samples. The probable mechanism of oligomerization of 1-decene on this catalyst is described.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 52 (1994), S. 119-127 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Ti(OC6H4CH3)4 in combination with Et3Al2Cl3 and Et3Al forms an active catalytic system for oligomerizing ethylene to low molecular weight α-olefins. At room temperature with Ti(OC6H4CH3)4−Et3Al C4−C10 α-olefins are formed. At elevated temperature and under the influence of various phosphorus additives Ti(OC6H4CH3)4−Et3Al2Cl3 yields linear olefins in the C4−C20 range. Selectivities greater than 97% could be achieved in most cases with the Ti(OR)4−Et3Al2Cl3-additive system.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 67 (1999), S. 83-88 
    ISSN: 1588-2837
    Keywords: Manganese/ruthenium catalysts ; oxidation ; alkanes ; tert-butyl hydroperoxide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Di- and trinuclear clusters of manganese and ruthenium were used as catalysts in the oxidation of alkanes in the presence oftert-butyl hydroperoxide as oxidant. The investigations reveal marked differences in the reactivity of the manganese and ruthenium catalysts though structurally they have similar coordination environment. The probable mechanism of hydroxylation in these systems is discussed.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Beiträge zur Chemie der Alkylverbindungen von Übergangsmetallen 51. Darstellung und Charakterisierung der Organomangan (III)- Verbindung Na[Mn(C5H5)4]Bei der Reaktion von Mn(acac)3 mit NaC5H5 in Tetrahydrofuran entsteht kristallines, rotviolettes, diamagnetisches Na[Mn(η1-C5H5)4-n(η5 -C5H5)n]. Eine nähere Charakterisierung erfolgte durch das 1H-NMR-, IR- und UV-VIS-Spektrum sowie durch Leitfähigkeitsmessngen.
    Notes: At reaction of Mn(acac)3 with NaC5H5 in tetrahydrofuran solution Na[Mn(η1-C5H5)4-n(η5 -C5H5)n] was obtained as a crystalline, red-violet, diamagnetic organomanganese(III) compound, which was characterized by n.m.r., i.r., and electronic spectra and by conductivity measurements.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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