Accession Number:

ADA010866

Title:

A New Type of Heteropoly Anion. Tetramolybdo Complexes of Dialkyl- and Diaryl Arsinates.

Descriptive Note:

Technical rept.,

Corporate Author:

GEORGETOWN UNIV WASHINGTON D C DEPT OF CHEMISTRY

Personal Author(s):

• Barkigia,Kathleen M.
• Rajkovic,Ljudmila
• Pope,Michael T.
• Quicksall,Carl O.

Report Date:

1975-05-01

Pagination or Media Count:

12.0

Abstract:

Synthesis and characterization of several salts of the heteropoly complexes R2AsMo4O14OH2-, R CH3, C2H5, C6H5, are described. These are some of the first examples of stable organic derivatives of heteropoly anions. The crystal structure of CN3H62CH32AsMo4O14OH-H2O shows the anion to consist of a compact cluster of edge- and face-shared MoO6 octahedra capped by the CH32AsO2 tetrahedron. The new complexes have two other unusual features. First, a uniquely low charge 2- for a polyanion that is stable in aqueous solution pH 2-6 and second, a proton characterized by nmr and ir, that appears to be localized on the oxygen atom that bridges the four molybdenums.

Descriptors:

• *COMPLEX COMPOUNDS
• *MOLYBDATES
• CRYSTAL STRUCTURE
• SYNTHESIS(CHEMISTRY)
• ORGANOMETALLIC COMPOUNDS
• MOLECULAR STRUCTURE
• ANIONS
• ARSENIC COMPOUNDS

Subject Categories:

• Inorganic Chemistry
• Organic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE