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Magnetic Behavior and Infrared Spectra of Jarosite, Basic Iron Sulfate, and Their Chromate Analogs

Powers, Dana A. and Rossman, George R. and Schugar, Harvey J. and Gray, Harry B. (1975) Magnetic Behavior and Infrared Spectra of Jarosite, Basic Iron Sulfate, and Their Chromate Analogs. Journal of Solid State Chemistry, 13 (1-2). pp. 1-13. ISSN 0022-4596. http://resolver.caltech.edu/CaltechAUTHORS:20130416-112533291

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Abstract

The magnetic behavior and infrared spectroscopic features of KFe_3(SO_4)_2(OH)_6 (jarosite), (H_3O)Fe_3(SO_4)_2(OH)_6 (hydronium jarosite), KFe_3(CrO_4)_2(OH)_6, Fe(OH)SO_4 (basic iron sulfate) and Fe(OH)CrO_4 (basic iron chromate) are reported. Spectroscopic data are in accord with X-ray data which show that KFe_3(SO_4)_2(OH)_6, (H_3O)Fe_3(SO_4)_2(OH)_6, and KFe_3(CrO_4)_2(OH)_6 are isostructural with KAl_3(SO_4)_2(OH)_6 (akunite). All the species exhibit negative deviations from Curie-Weiss behavior over the temperature range 300-76°K. The compounds KFe_3(CrO_4)_2(OH)_6 and Fe(OH)CrO_4 undergo ferrimagnetic transitions at 73 and 71°K, respectively. Maxima occur in the susceptibilities of KFe_3(SO_4)_2(OH)_6 and (H_3O)Fe_3(SO_4)_2(OH)_6 at 45 and 50°K.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0022-4596(75)90075-4DOIUNSPECIFIED
http://www.sciencedirect.com/science/article/pii/0022459675900754PublisherUNSPECIFIED
Additional Information:© 1975 Academic Press, Inc. Received February 22, 1974. Dana A. Powers would like to thank the Fannie and John Hertz Foundation for the award of a fellowship. This research was supported by the National Science Foundation.
Funders:
Funding AgencyGrant Number
Fannie and John Hertz FoundationUNSPECIFIED
NSFUNSPECIFIED
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Caltech Division of Chemistry and Chemical Engineering4839
Record Number:CaltechAUTHORS:20130416-112533291
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130416-112533291
Official Citation:Dana A. Powers, George R. Rossman, Harvey J. Schugar, Harry B. Gray, Magnetic behavior and infrared spectra of jarosite, basic iron sulfate, and their chromate analogs, Journal of Solid State Chemistry, Volume 13, Issues 1–2, February 1975, Pages 1-13, ISSN 0022-4596, 10.1016/0022-4596(75)90075-4. (http://www.sciencedirect.com/science/article/pii/0022459675900754)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:37970
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:16 Apr 2013 18:42
Last Modified:13 Feb 2019 18:05

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