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

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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.

Author(s):
Miller, Vernon R. ; Weiss, Richard ; Grimes, Russell N.
Author Organization(s):
VIRGINIA UNIV CHARLOTTESVILLE DEPT OF CHEMISTRY
Descriptive Note:
Interim rept.,
Pagination:
0034

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-23
Contract/Grant Number(s):
N00014-75-C-0305
 Subject Terms
Joint Capability Areas:
JCA_6.3.3_Spectrum Management; JCA_6.3_Net Management; JCA_6_Net Centric; JCA_1_Force Support; JCA_1.2_Force Preparation; JCA_1.2.3_Educating; JCA_3.2_Engagement; JCA_3_Force Application; JCA_5_Command and Control; JCA_3.2.1_Kinetic Means
Modernization Areas:
Directed Energy
Communities of Interest:
Weapons Technologies
Descriptor(s):
*METAL COMPLEXES, *BORANES, *BORON HYDRIDES, CHEMICAL PROPERTIES, PYROLYSIS, COBALT COMPOUNDS
Field(s)/Group(s):
Inorganic Chemistry
Keyword(s):
WUNR053569
Report Date:
1977 Apr 01