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Issue 20, 2012
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Two azido-bridged cobalt(II) coordination polymers with nicotinate co-ligand: synthesis, structures and magnetic properties

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Abstract

By utilizing nicotinic acid as a co-ligand, two new azido-bridged cobalt(II) complexes with the formulae [Co2(N3)(nic)2Cl(H2O)]n (1) and [Co(N3)(nic)]n (2) (nic = nicotinate) have been synthesized under solvothermal condition and structurally characterized. Complex 1 exhibits a rare three-dimensional (3D) Kagomé topology with [Co4] units as connecting nodes. Complex 2 is also a 3D structure which contains 1D CoII–μ-1,1-azido chains as rod-shaped SBUs. Magnetic data analysis shows that ferromagnetic coupling intra-[Co4]-cluster and antiferromagnetic interaction inter-[Co4]-cluster exists in complex 1, while complex 2 exhibits metamagnetism with a critical field of 5.5 kOe.

Graphical abstract: Two azido-bridged cobalt(ii) coordination polymers with nicotinate co-ligand: synthesis, structures and magnetic properties

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Publication details

The article was received on 04 Feb 2012, accepted on 15 Mar 2012 and first published on 15 Mar 2012


Article type: Paper
DOI: 10.1039/C2DT30262D
Citation: Dalton Trans., 2012,41, 6272-6276
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    Two azido-bridged cobalt(II) coordination polymers with nicotinate co-ligand: synthesis, structures and magnetic properties

    Q. Yang, J. Zhao, W. Song and X. Bu, Dalton Trans., 2012, 41, 6272
    DOI: 10.1039/C2DT30262D

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