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Synthesis, structure and magnetic properties of two mixed-valence icosanuclear nanocages

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Abstract

The reactions of 3,3′-bis(5-mercapto-1,2,4-triazole) with Co(II) and Ni(II) ions, respectively, gave two nanospheric mixed-valence icosanuclear cage-like complexes [M20L12](SO4)2·6DMF·CH3OH·3H2O (M = Co, 1; Ni, 2) with the in situ generated oxalyldithiosemicarbazide (H4L) as ligand. The eight octahedral M(II) ions and twelve square-planar M(III) ions in the two complexes are linked by twelve three-connecting linkers of L4− to build an icosanuclear [MII8MIII12L12]4+ nanocage with an inner cubic MII8 cage core. Their cage skeletons are stable in water. The sulphate anions reside over the cage portals. The magnetic measurements of the two complexes revealed the presence of dominant antiferromagnetic interactions between the metal ions in both complexes.

Graphical abstract: Synthesis, structure and magnetic properties of two mixed-valence icosanuclear nanocages

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Publication details

The article was received on 23 Aug 2018, accepted on 09 Oct 2018 and first published on 09 Oct 2018


Article type: Paper
DOI: 10.1039/C8DT03444C
Citation: Dalton Trans., 2018, Advance Article
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    Synthesis, structure and magnetic properties of two mixed-valence icosanuclear nanocages

    H. Wang, X. Xu, Y. Jiang, P. Yao, B. Li, H. Zou, J. Zhou and Z. Chen, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C8DT03444C

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