Accession Number:

AD0711290

Title:

THE PREPARATION AND CHARACTERIZATION OF NEW HETEROPOLY TUNGSTATES.

Descriptive Note:

Research rept.,

Corporate Author:

NAVAL ACADEMY ANNAPOLIS MD

Personal Author(s):

• Skolds,Charles R.

Report Date:

1970-05-15

Pagination or Media Count:

73.0

Abstract:

In 1965 the following unusual anion was prepared and characterized H2GaW11O409-. This anion has been found to be very reactive toward transition metal ions. It has been utilized in the preparation of two new and very stable heteropoly anions which have the following formulations CuGaW11O409- I MnGaW11O409- II. Both the NH4-Na and the pure Na derivatives of these anions have been prepared and studied. The new compounds were analyzed for each constituent except oxygen. Other studies with these new compounds included x-ray diffraction and cryoscopy. The cubic, crystallographic cell of the NH4-Na derivative of anion I contains eight formula weights as required by its space group. The NH4-Na derivative of anion II crystallizes in the orthorhombic system. There are two formula weights in its crystallographic unit cell. Both anions I and II have the Keggin-type structure. Author

Descriptors:

• (*TUNGSTATES
• SYNTHESIS(CHEMISTRY))
• (*CRYSTAL STRUCTURE
• TUNGSTATES)
• GALLIUM COMPOUNDS
• COPPER COMPOUNDS
• MANGANESE COMPOUNDS
• X RAY DIFFRACTION
• AMMONIUM COMPOUNDS

Subject Categories:

• Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE