Accession Number : AD0744960

Title :   Four- and Six-Coordinate Cobalt(II) Dioctylphosphinate.

Descriptive Note : Technical rept.,

Corporate Author : PENNWALT CORP KING OF PRUSSIA PA RESEARCH AND DEVELOPMENT DEPT

Personal Author(s) : Gillman,Hyman D.

Report Date : JUN 1972

Pagination or Media Count : 16

Abstract : A new form of cobalt(II) dioctylphosphinate (form II) was prepared by the reaction of cobalt(II) chloride with dioctylphosphinic acid in absolute ethanol. Visible and near infrared spectra indicate that form II contains octahedrally coordinated cobalt(II), whereas the previously reported form (form I) contains tetrahedrally coordinated cobalt(II). Form II is irreversibly converted to form I by heating above 68C or by dissolving it in nonpolar solvents. Infrared spectra, X-ray powder patterns, and DSC thermograms for both forms are presented and compared. This appears to be the first example of a poly(metal phosphinate) which exists both in four- and six-coordinate forms. (Author)

Descriptors :   (*COBALT COMPOUNDS, COMPLEX COMPOUNDS), (*ORGANIC PHOSPHORUS COMPOUNDS, COMPLEX COMPOUNDS), (*INORGANIC POLYMERS, *COMPLEX COMPOUNDS), CHEMICAL BONDS, MOLECULAR STRUCTURE, SYNTHESIS(CHEMISTRY), ULTRAVIOLET SPECTRA, VISIBLE SPECTRA, INFRARED SPECTRA

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE