Trivalent nickel. The quinone oximate family: synthesis and redox regulation of isomerism and ligand redistribution
Journal Article
·
· Inorg. Chem.; (United States)
The synthesis of the tris chelates Ni/sup III/(RQ)/sub 3/ by electrooxidation of Ni/sup II/(RQ)/sub 3/- (HRQ = quinone monoximes) is reported. These complexes have afforded a unique opportunity for voltammetric and spectroscopic examination of geometric isomerism and isomer preferences of the two oxidation states of nickel in a N/sub 2/O/sub 3/ environment. A redox-driven ligand redistribution reaction that furnishes Ni(RQ)/sub 3/ following electrooxidation of Ni/sup II/(RQ)/sub 3/(N,N) to Ni/sup III/(RQ)/sub 2/(N,N)/sup +/, where N,N represents amine coordination is reported. The effects of geometric structure, substituents, and ligands on the Ni(III)-Ni(II) reduction potential in Ni(RQ)/sub 3/ and Ni(RQ)/sub 2/(N,N)/sup +/ are noted. 29 references, 5 figures, 4 tables.
- Research Organization:
- Indian Association for the Cultivation of Science, Calcutta
- OSTI ID:
- 6221369
- Journal Information:
- Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 27:19; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
ALKANES
AMINES
AROMATICS
CHEMISTRY
CYANIDES
DATA
DEUTERIUM
ELECTROCHEMISTRY
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGEN ISOTOPES
HYDROXY COMPOUNDS
INFORMATION
ISOTOPE EFFECTS
ISOTOPES
LABELLED COMPOUNDS
LIGHT NUCLEI
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIMES
QUINONES
STABLE ISOTOPES
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
ALKANES
AMINES
AROMATICS
CHEMISTRY
CYANIDES
DATA
DEUTERIUM
ELECTROCHEMISTRY
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGEN ISOTOPES
HYDROXY COMPOUNDS
INFORMATION
ISOTOPE EFFECTS
ISOTOPES
LABELLED COMPOUNDS
LIGHT NUCLEI
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIMES
QUINONES
STABLE ISOTOPES