CaltechAUTHORS
  A Caltech Library Service

Metal ion-sulfur(IV) chemistry. 2. Kinetic studies of the redox chemistry of copper(II)-sulfur(IV) complexes

Conklin, Martha H. and Hoffmann, Michael R. (1988) Metal ion-sulfur(IV) chemistry. 2. Kinetic studies of the redox chemistry of copper(II)-sulfur(IV) complexes. Environmental Science and Technology, 22 (8). pp. 891-898. ISSN 0013-936X. http://resolver.caltech.edu/CaltechAUTHORS:20150814-140636086

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20150814-140636086

Abstract

The redox chemistry of Cu(II)-S(IV) complexes is examined, and the rate of reduction of Cu(II) is determined. The reduction of Cu(II) is shown to proceed via Cu^(II)_2SO_3^(2+) and Cu^(II)SO_3OH^+ intermediates. Copper(I), SO_4^(2-), and a mixed-valence compound, Cu^(II)SO_3Cu^l_2SO_3.2H_2O, are determined to be the principal products. The rate law is consistent with consecutive first-order reactions. Results are interpreted in terms of the initial formation of an inner-sphere complex, which is followed by a rate-limiting electron-transfer step. These results are discussed in light of previously accepted mechanisms for the trace metal catalysis of the autoxidation of SO_3^(2-).


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/es00173a005DOIArticle
http://pubs.acs.org/doi/abs/10.1021/es00173a005PublisherArticle
ORCID:
AuthorORCID
Hoffmann, Michael R.0000-0002-0432-6564
Additional Information:© 1988 American Chemical Society. Received for review May 1, 1987. Accepted January 6, 1988. We are indebted to Eric C. Betterton (Caltech) for his expert assistance throughout the latter stages of this work. We also acknowledge the personal support of our program officers D. Alan Hanson (EPRI) and L. Swaby (EPA). This work was cooperatively supported by the U.S. Environmental Protection Agency (EPA R811496) and the Electric Power Research Institute (RP 1630-47).
Funders:
Funding AgencyGrant Number
Environmental Protection Agency (EPA)R811496
Electric Power Research Institute (EPRI)RP 1630-47
Record Number:CaltechAUTHORS:20150814-140636086
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150814-140636086
Official Citation:Metal ion-sulfur(IV) chemistry. 2. Kinetic studies of the redox chemistry of copper(II)-sulfur(IV) complexes Martha H. Conklin and Michael R. Hoffmann Environmental Science & Technology 1988 22 (8), 891-898 DOI: 10.1021/es00173a005
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59550
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:17 Aug 2015 18:22
Last Modified:17 Aug 2015 18:22

Repository Staff Only: item control page