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
    Zeitschrift für anorganische Chemie 621 (1995), S. 1299-1303 
    ISSN: 0044-2313
    Keywords: Synthesis ; Crystal Structure ; Halides ; Clusters ; Lanthanides ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ternary Chlorides with Trigonal-Bipyramidal Clusters: [M5(C2)]Cl9 (M = La—Pr)The chlorides [M5(C2)]Cl9 (M = La—Pr) are obtained by metallothermic reduction of the respective trichlorides MCl3 with caesium in the presence of the lanthanide metal and carbon in sealed niobium ampoules at 800°C. They contain trigonal-bipyramidal clusters [M5(C2)] crystallizing with the triclinic crystal system. Only seven of the nine edges of the trigonal bipyramids are brigded by chloride (Cli). Each cluster is surrounded by twelve terminal ligands (Cla) so that units of the composition [M5(C2)Cl7i]Cl12a have to be considered. These are connected not only via Cli-a and Cla-a-a bridges. Rather, Cla-a (one linear and one bent) and Cli-i bridges are also observed.
    Notes: Die Chloride [M5(C2)]Cl9 (M = La—Pr) erhält man durch metallothermische Reduktion der entsprechenden Trichloride MCl3 mit Caesium in Gegenwart des jeweiligen Metalls M und Kohlenstoff in verschweißten Niobampullen bei 800°C. Sie enthalten trigonal-bipyramidale [M5(C2)]-Cluster und kristallisieren im triklinen Kristallsystem. Von den neun Kanten der trigonalen Bipyramiden werden nur sieben von Cli-Liganden überbrückt. Zusätzlich werden die [M5(C2)]-Cluster von zwölf terminalen Liganden koordiniert, so daß man zu Einheiten [M5(C2)Cl7i]Cl12a gelangt. Die trigonal-bipyramidalen Cluster werden über Cli-a- und Cla-a-a-Brücken, auch über Cla-a-Brücken (eine gewinkelte und eine lineare) sowie Cli-i-Brücken miteinander vernetzt.
    Additional Material: 2 Ill.
    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...