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Preparation, electrochemical behavior and variable temperature magnetic properties of transition metal complexes containing 2-phenyl-4,5-di-(2-pyridyl)imidazole

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Abstract

We report the synthesis of three new complexes featuring first row transition metal ions (Mn2+, Fe2+, or V3+) and a 2-pyridyl-substituted imidazole ligand. We investigate the electronic and magnetic properties of the complexes via electronic spectroscopy, cyclic voltammetry, superconducting quantum interference device magnetometry and density functional theory calculations. Complexes with Fe2+ or V3+ are redox active, and we observe spin crossover from the variable temperature magnetic susceptibility data for the complex with Fe2+. We intend to use these complexes as precursors to bimetallic mixed-valent materials.

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Acknowledgments

MTL acknowledges NSERC, CFI, Canada Research Chairs Program, Brock University and Brandon University for funding.

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  1. Martin T. Lemaire

    Present address: Department of Chemistry, Brandon University, 270 18th Street, Brandon, MB, R7A6A9, Canada

Authors and Affiliations

  1. Department of Chemistry, Brock University, 500 Glenridge Avenue, St. Catharines, ON, L2S 3A1, Canada

    Michelle L. Dowling & Martin T. Lemaire

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  1. Michelle L. Dowling
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  2. Martin T. Lemaire
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Correspondence to Martin T. Lemaire.

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Dowling, M.L., Lemaire, M.T. Preparation, electrochemical behavior and variable temperature magnetic properties of transition metal complexes containing 2-phenyl-4,5-di-(2-pyridyl)imidazole. Transition Met Chem 39, 843–848 (2014). https://doi.org/10.1007/s11243-014-9866-1

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  • DOI: https://doi.org/10.1007/s11243-014-9866-1

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