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Issue 92, 2015
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Tuning the Ising-type anisotropy in trigonal bipyramidal Co(II) complexes

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Abstract

This paper demonstrates the engineering and tuning of Ising-type magnetic anisotropy in trigonal bipyramidal Co(II) complexes. Here, we predict that employing a ligand that forces a trigonal bipyramidal arrangement and has weak equatorial σ-donating atoms, increases (in absolute value) the negative zero field splitting parameter D. With these considerations in mind, we used a sulfur containing ligand (NS3iPr), which imposes a trigonal bipyramidal geometry to the central Co(II) ion with long equatorial Co–S bonds. The resulting complex exhibits a larger anisotropy barrier and a longer relaxation time in comparison to the complex prepared with a nitrogen containing ligand (Me6tren).

Graphical abstract: Tuning the Ising-type anisotropy in trigonal bipyramidal Co(ii) complexes

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Publication details

The article was received on 15 Sep 2015, accepted on 28 Sep 2015 and first published on 29 Sep 2015


Article type: Communication
DOI: 10.1039/C5CC07741A
Citation: Chem. Commun., 2015,51, 16475-16478
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    Tuning the Ising-type anisotropy in trigonal bipyramidal Co(II) complexes

    F. Shao, B. Cahier, N. Guihéry, E. Rivière, R. Guillot, A. Barra, Y. Lan, W. Wernsdorfer, V. E. Campbell and T. Mallah, Chem. Commun., 2015, 51, 16475
    DOI: 10.1039/C5CC07741A

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