Reactions of the difunctional organochromium cation 3,3'-oxybis((chromiomethyl)benzene)(4+), (CrCH/sub 2/C/sub 6/H/sub 4/)/sub 2/O/sup 4 +/
The title compound, I, was prepared from bis(m-(bromomethyl)phenyl) ether and excess chromium(II) in aqueous acetone. The product was purified by ion-exchange chromatography, and its composition was verified from its spectrum and from the products obtained on base hydrolysis and on reaction with mercury(II) and mild oxidants. Reaction of the dibromide with limiting quantities of chromium(II) produces the complex (CrCH/sub 2/C/sub 6/H/sub 4/OC/sub 6/H/sub 4/CH/sub 2/Br)/sup 2 +/ (II) which was similarly characterized. Kinetic data were obtained on the reactions forming I and II and on the reactions of I and II with mercury(II) ion. The data are intepreted to show that the difunctional materials react at about twice the rate of their monofunctional analogues, suggesting little important neighboring group assistance. Reactions known to occur in (at least) two stages having comparable rates occasionally give evidence of but a single kinetic step; some general statements relating to statistically related biphasic kinetic schemes are given.
- Research Organization:
- Ames Lab., IA
- OSTI ID:
- 6257468
- Journal Information:
- Inorg. Chem.; (United States), Vol. 18:5
- Country of Publication:
- United States
- Language:
- English
Similar Records
Organochromium(III) complexes derived from nitriles
Oxidative and electrophilic pathways in the reactions of organochromium(III) complexes with nitrous acid and tris(2,2'-bipyridyl)ruthenium(III)
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHROMIUM COMPLEXES
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
MERCURY COMPOUNDS
ORGANOMETALLIC COMPOUNDS
BROMINE COMPOUNDS
EXPERIMENTAL DATA
ISOLATED VALUES
COMPLEXES
DATA
DATA FORMS
HALOGEN COMPOUNDS
INFORMATION
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
REACTION KINETICS
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)