Accession Number:

ADA038199

Title:

Polyhedral Cobaltaboranes. Versatile Replacement of BH Groups by Co(C5H5) Units in Boron Hydride Frameworks. Borane-Metal Cluster Hybrid Molecules.

Descriptive Note:

Interim rept.,

Corporate Author:

VIRGINIA UNIV CHARLOTTESVILLE DEPT OF CHEMISTRY

Report Date:

1977-04-01

Pagination or Media Count:

34.0

Abstract:

A series of air-stable crystalline cobaltaboranes has been isolated from the reaction of Na B5H8, CoCl2, and Na C5H5 in THF below -20 deg. The major products were red 2-C5H5 CoB4H8 an analog of B5H9 and the known orange complex 1,3-cyclohexadienecobalt II cyclopentadiene, C6H8 Co C5H5. The pyrolysis of 2- C5H5 CoB4H8 at 200 deg produced yellow 1- C5H5 CoB4H8, cobalt moving to the apex position. The metal-rich di-, tri-, and tetracobalt systems are viewed as hybrids linking the boron hydride and metal cluster areas. Various aspects of the formation, structures, bonding, and properties of these compounds are discussed.

Subject Categories:

  • Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE