Coordination compounds of hafnium(IV) with some N-substituted derivatives of unsaturated hydroxamic acids

Journal Article · Fri May 01 04:00:00 EDT 1987 · Sov. J. Coordinat. Chem.; (United States)

OSTI ID:6414798

Stratulat, A A; Batyr, D G

Coordination compounds of hafnium(IV) with N-o(or m)-X-phenylacryl- and methacrylhydroxamic acids with the general formula (Hf/XC/sub 6/H/sub 4/-N(O)-C(O)-R//sub 4/), where X = 4-CH/sub 3/, H, 4-Cl, 4-Br, 4-CH/sub 3/C(O), 4-CH=CH/sub 2/, 4-CH/sub 3/OC(O), 3-CH/sub 3/, 3-Cl, and 3-Br, and R = CH=CH/sub 2/ and C(CH/sub 3/)=CH/sub 2/, have been synthesized and characterized. The type of coordination of the organic ligands and the structure of the complexes have been established on the basis of the data from IR, electronic, and PMR spectra. It has been shown that the complexation process involves the replacement of the proton of the hydroxyl group of the hydroxamic grouping by a metal ion and the coordination of the oxygen atom of the carbonyl group. The coordination compounds obtained have been assigned a square-antiprismatic structure. The introduction of a methyl radical into the vinyl grouping R results in a significant increase in the strength of the complex.

• Research Organization: Institute of Chemistry, Moldavia, USSR
• OSTI ID: 6414798
• Journal Information: Sov. J. Coordinat. Chem.; (United States), Journal Name: Sov. J. Coordinat. Chem.; (United States) Vol. 12:7; ISSN SJCCD
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ABSORPTION SPECTRA
ACETONE
AMINES
CHELATES
CHEMICAL BONDS
CHLORINATED ALIPHATIC HYDROCARBONS
CHLOROFORM
COMPLEXES
COMPLEXOMETRY
DEUTERIUM COMPOUNDS
ELECTRON SPIN RESONANCE
ELECTRONIC STRUCTURE
ELEMENTS
EXTRACTION
HAFNIUM
HAFNIUM COMPLEXES
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXAMIC ACIDS
HYDROXY COMPOUNDS
INFRARED SPECTRA
KETONES
LATTICE VIBRATIONS
MAGNETIC RESONANCE
METALS
MOLECULAR STRUCTURE
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC SOLVENTS
RESONANCE
SEPARATION PROCESSES
SOLUBILITY
SOLVENT EXTRACTION
SOLVENTS
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS