A tetradentate metalloligand: synthesis and coordination behaviour of a 2-pyridyl-substituted cyclobutadiene iron complex

The salt [K([18]crown-6){Cp*Fe(η(4)-C4py4)}] (K1, py = 2-pyridyl, Cp* = C5Me5) is accessible by the reaction of an iron(0) naphthalene precursor and bis(2-pyridyl)acetylene. Cyclic voltammetry and preparative investigations demonstrate the electron-rich nature of K1, which is reversibly oxidized to...

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Published inDalton transactions : an international journal of inorganic chemistry Vol. 43; no. 11; pp. 4247 - 4250
Main Authors Rezaei Rad, Babak, Herrmann, Dirk, Lescop, Christophe, Wolf, Robert
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 01.01.2014
Subjects
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Chemical Sciences
Chlorides
Iron
Naphthalene
Organic chemistry
Precursors
Synthesis
Voltammetry
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Summary:The salt [K([18]crown-6){Cp*Fe(η(4)-C4py4)}] (K1, py = 2-pyridyl, Cp* = C5Me5) is accessible by the reaction of an iron(0) naphthalene precursor and bis(2-pyridyl)acetylene. Cyclic voltammetry and preparative investigations demonstrate the electron-rich nature of K1, which is reversibly oxidized to neutral [Cp*Fe(η(4)-C4py4)] (1) at a low potential. The first coordination studies with iron(II) and zinc(II) chloride show that all four 2-pyridyl units may be employed for metal coordination.
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ISSN:1477-9226
1477-9234
DOI:10.1039/c3dt52699b