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Cyanide vs. azide “magnetic arm wrestling”: MnII–NbIV and MnII–MoIV magnetic coordination polymers with mixed bridging

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Abstract

Two magnetic coordination polymers with mixed cyanide–azide bridging based on octacyanoniobate(IV) and octacyanomolybdate(IV) are reported: {(NH4)[(H2O)MnII-(μ-N3)-MnII(H2O)][MIV(CN)8]·3H2O}n Mn2MN3 (M = Nb or Mo). Cyanide ligands form the 3-D framework of Mn2MN3, while azide ligands connect two MnII centres together. Both CN and N3 are known in magnetochemistry for their marked magnetic coupling abilities which in the case of Mn2NbN3 lead to competitive antiferromagnetic interactions within the NbIV–CN–MnII and MnII–N3–MnII structural motifs. This competition results in a peculiar magnetic behaviour consistent with a non-collinear magnetic structure.

Graphical abstract: Cyanide vs. azide “magnetic arm wrestling”: MnII–NbIV and MnII–MoIV magnetic coordination polymers with mixed bridging

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Publication details

The article was received on 10 Jul 2017, accepted on 07 Aug 2017 and first published on 07 Aug 2017


Article type: Communication
DOI: 10.1039/C7CC05319C
Citation: Chem. Commun., 2017, Advance Article
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    Cyanide vs. azide “magnetic arm wrestling”: MnII–NbIV and MnII–MoIV magnetic coordination polymers with mixed bridging

    G. Handzlik, M. Kozieł, A. Olejniczak, B. Sieklucka and D. Pinkowicz, Chem. Commun., 2017, Advance Article , DOI: 10.1039/C7CC05319C

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