Simultaneous Voltammetric Comparisons of Reduction Potentials

13284 J. Am. Chem. Soc., Vol. 120, No. 50, 1998

Additions and Corrections

Additions and Corrections First Exclusive Endo-dig Carbocyclization: HfCl4-Catalyzed Intramolecular Allylsilylation of Alkynes [J. Am. Chem. Soc. 1998, 120, 5339-5340]. KEN-ICHIRO IMAMURA, EIJI YOSHIKAWA, VLADIMIR GEVORGYAN, AND YOSHINORI YAMAMOTO* Page 5339: The eq 1 should read as:

JA985531Q 10.1021/ja985531q Published on Web 12/01/1998

Simultaneous Voltammetric Comparisons of Reduction Potentials, Reactivities, and Stabilities of the High-Potential Catalytic States of Wild-Type and Distal-Pocket Mutant (W51F) Yeast Cytochrome c Peroxidase [J. Am. Chem. Soc. 1998, 120, 6270-6276]. MADHU S. MONDAL, DAVID B. GOODIN,* AND FRASER A. ARMSTRONG* Pages 6273 and 6274: Three hydrogen peroxide concentrations are incorrectly given as 5.9 mM instead of 5.9 µM: line 5 under Catalytic Voltammetry of WT and W51F, as well as the captions for Figures 4 (line 4) and 5 (line 3). JA985533A 10.1021/ja985533a Published on Web 12/04/1998

Kinetics and Mechanism of Redox-Coupled, Long-Range Proton Transfer in an Iron-Sulfur Protein. Investigation by Fast-Scan Protein-Film Voltammetry [J. Am. Chem. Soc. 1998, 120, 7085-7094]. JUDY HIRST, JILLIAN L. C. DUFF, GUY N. L. JAMESON, MARY A. KEMPER, BARBARA K. BURGESS, AND FRASER A. ARMSTRONG* Page 7091: Equation 4B should read:

rate of deprotonation ) khopoff JA985532I 10.1021/ja985532i Published on Web 12/04/1998

[[3Fe-4S]0H+]K2 [H+] + K2