Library

feed icon rss

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 130 (1997), S. 1761-1764 
    ISSN: 0009-2940
    Keywords: Endohedral ; Barium ; Fullerenes ; Dibarium fullerenes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A new route to endohedral fullerenes involving the evaporation of carbon and a metal at different positions, i.e. at different temperatures, in a radio-frequency furnace is described. For the first time, endohedral barium fullerenes within the composition range Ba@C74 to Ba@C136 have been produced in high yields as compared to hollow fullerenes, and have been extracted with CS2. Ba@C60, and Ba@C70, are only soluble in CS2 following sublimation. Furthermore, the first nonlanthanoid dimetallo fullerenes ranging in composition from Ba2@C88 to Ba2@C116 have been obtained. All endohedral barium fullerenes were characterized by mass spectrometry. Properties such as sublimation behaviour, solubility, and sensitivity to air have been studied.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 689-693 
    ISSN: 0044-2313
    Keywords: Fullerenes ; endohedral metallofullerenes ; preparation ; thermodynamics of formation ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Formation of Fullerenes and Endohedral Metallofullerenes: Preparation in a Radiofrequency FurnaceA thermodynamic analysis of the reaction of formation is presented for C60. The alternative route for the preparation of fullerenes by evaporating carbon in a RF-furnace is described. This process is characterized by its broad variability and by comparatively mild conditions which, in addition, may be measured and controlled rather precisely. Thus, it offers favorite facilities for the production of soots with high contents of fullerenes and endohedral fullerenes. So far, LaC82 could be extracted using toluene.
    Notes: Eine thermodynamische Analyse der Bildungsreaktion von C60 wird gegeben und die Darstellung von Fullerenen im Hochfrequenzofen beschrieben. Dieses neue Verfahren zeichnet sich durch eine hohe Variabilität und vergleichsweise schonende Bedingungen aus, die gut meß- und kontrollierbar sind. Es bietet daher günstige Voraussetzungen zur Herstellung von Rußen mit gesteigerten Anteilen höherer Fullerene und, im Falle von Coverdampfungen, endohedraler Metallofullerene. Bisher konnte in Toluolextrakten LaC82 nachgewiesen werden.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...