Synthetic Analogs of the Active Sites of Iron-Sulfur Proteins. VIII. Some Electronic Properties of [Fe₄S₄(SR)₄]³; Analogs of Reduced Bacterial Ferredoxins

Author Info

R. B. Frankel, Massachusetts Institute of TechnologyFollow
T. Herskovitz, E.I. du Pont de Nemours and Co., Inc. - Delaware
B. A. Averill, Massachusetts Institute of Technology
R. H. Holm, Massachusetts Institute of Technology
P. J. Krusic, E.I. du Pont de Nemours and Co., Inc. - Delaware
W. D. Phillips, E.I. du Pont de Nemours and Co., Inc. - Delaware

Recommended Citation

Postprint version. Published in Biochemical and Biophysical Research Communications, Volume 58, Issue 4, June 1, 1974, pages 974-982.

NOTE: At the time of publication, the author Richard B. Frankel was not yet affiliated with Cal Poly.

The definitive version is available at https://doi.org/10.1016/S0006-291X(74)80239-1.

Abstract

One-electron reduction of the synthetic tetramers [Fe₄S₄(SR)₄]^2- (R = CH₂Ph, Ph), by chemical and electrochemical methods affords the corresponding trianions. The collective results from optical, electron paramagnetic resonance, and Mössbauer spectroscopy, when compared to available data for reduced 4-Fe and 8-Fe ferredoxin proteins and super-reduced Chromatium high-potential protein, reveal that [Fe₄S₄(SR)₄]^3- are electronic analogs of the [Fe₄S₄(S-Cys)₄] active sites of these proteins.

Disciplines

Physics

Copyright

1974 Elsevier.