INTRACOMPLEX COMPOUNDS OF HEXAVALENT URANIUM WITH AZOMETHIN DERIVATIVES

Journal Article · Thu Jan 21 04:00:00 EST 1960 · Doklady Akad. Nauk S.S.S.R.

OSTI ID:4149914

Zelentsov, V V; Savich, I A; Spitsyn, V I

The stereochemistry of intnacomplex uranyl compounds with Schiff's basis was analyzed. The complexes were divided into three Schiff groups: those prepared with aromatic o-hydroxyaldehyde and ethylenediamine, with aromatic amine, and with 2-aminopyridine(c). Bases of the disalicitalethylenediamine type are tetrodentate reagents. The analysis indicated the presence of only one molecule of solvent in the uranyl of the first group, the molecule can be separated following prolonged heating at 160 to 180 deg C; the second group uranyls contain two molecules of solvent which do not separate at 160 to 180 deg but at 200 to 220 deg C the whole complex disintegrates. The third group with 2- aminopyridine is more stable and shows tendencies to complex with uranyl ion. Coordinate uranium(VI) saturation was observed in uranyl with azeomethene derivatives of 2-aminopyridine. The phenomenon occurs only if heterocyclic nitrogen is coordinately bonded with the central atom. The coordinate number of U(VI) in these complexes is 8; thus uranium has a variable coordination number according to Schiff reagent properties. (R.V .J.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-011547
• OSTI ID: 4149914
• Journal Information: Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 130
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ALDEHYDES
AMINES
AROMATICS
CHEMICAL REACTIONS
CHEMISTRY
CONFIGURATION
DECOMPOSITION
ELECTRIC CHARGES
LIQUEFYING
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
QUALITATIVE ANALYSIS
SCHIFF BASE
SEPARATION PROCESSES
SOLVENTS
STABILITY
URANIUM COMPLEXES
URANYL COMPOUNDS