Abstract
Treatment of two kinds of ferrocenyl‐substituted carboxylate ligands (3‐ferrocenyl‐2‐crotonic acid, HOOC‐CH˭(CH3)CFc (Fc˭(η5‐C5H5)Fe(η5‐C5H4)) or o‐ferrocecarbonyl benzoic acid, o‐HOOCC6H4COFc and 2,2′‐bipyridine (2,2′‐bipy) with ZnCl2 · 2H2O or Zn(OAc)2 · 2H2O resulted in two ferrocene‐containing complexes [ZnCl(η2‐OOCCH˭(CH3)CFc)(2,2′‐bipy)] (1) and [Zn(η2‐o‐OOCC6H4COFc) (o‐OOCC6H4COFc)(2,2′‐bipy)] · 1.5H2O (2). Their crystal structures have been characterized by single X‐ray determinations. There are three kinds of components in the two complexes, metal ions, ferrocenyl‐substituted carboxylate units and 2,2′‐bipy. Such complexes containing ferrocenyl‐substituted carboxylate and bipyridine‐based ligands are rare. The solution‐state differential pulse voltammetries of the complexes were determined. The results indicate that the half‐wave potential of the ferrocenyl moiety is influenced by the Zn(II) ion.
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