skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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 +/

Abstract

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.

Authors:
;
Publication Date:
Research Org.:
Ames Lab., IA
OSTI Identifier:
6257468
Resource Type:
Journal Article
Journal Name:
Inorg. Chem.; (United States)
Additional Journal Information:
Journal Volume: 18:5
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, 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)

Citation Formats

Marty, W., and Espenson, J.H. 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 +/. United States: N. p., 1979. Web. doi:10.1021/ic50195a014.
Marty, W., & Espenson, J.H. 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 +/. United States. doi:10.1021/ic50195a014.
Marty, W., and Espenson, J.H. Tue . "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 +/". United States. doi:10.1021/ic50195a014.
@article{osti_6257468,
title = {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 +/},
author = {Marty, W. and Espenson, J.H.},
abstractNote = {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.},
doi = {10.1021/ic50195a014},
journal = {Inorg. Chem.; (United States)},
number = ,
volume = 18:5,
place = {United States},
year = {1979},
month = {5}
}