Stable highly oxidizing cobalt complexes of macrocyclic ligands

…, RD Powell, C Slebodnick, ES Uffelman

Index: Collins, Terrence J.; Powell, Richard D.; Slebodnick, Carla; Uffelman, Erich S. Journal of the American Chemical Society, 1991 , vol. 113, # 22 p. 8419 - 8425

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Citation Number: 88

Abstract

X= MeO, Co (q'-3) noninnocent; however, EPR data in toluene at 5.9 K (S= 1/2; gl= 2.558, gz= 2.170, g3= 2.017; A2= 15 G) show that the metal center is the primary reisdence site of the unpaired electron. Co (v4-l) is a stable, yet potent, oxidant which is soluble in benzene and slightly soluble in pentane. The C~(~~-l)/[Co~~~(~~-l)]-couple is reversible and found at 0.550 V vs Fc+/Fc in CH2CI2 (ca. 1.26 V vs NHE). Co (v4-l) slowly oxidized water, yielding ...