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Issue 5, 2013
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The new nickel tellurite chloride compound Ni15Te12O34Cl10 – synthesis, crystal structure and magnetic properties

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Abstract

A new nickel tellurite oxohalide, Ni15Te12O34Cl10, has been prepared by chemical vapour transport reactions and the crystal structure was determined by single-crystal X-ray diffraction. The compound crystallizes in the triclinic space group P[1 with combining macron] with the pseudomonoclinic cell parameters a = 10.3248(6) Å, b = 10.3249(6) Å, c = 11.6460(8) Å, α = 73.782(6)°, β = 73.782(6)°, γ = 63.51(2)°, Z = 1, R1 = 0.0264. The Ni2+ ions have octahedral [NiO6] and [NiO4Cl2] coordinations, the Te4+ ions have one-sided [TeO3] and [TeO4] coordinations. The crystal structure can be described as consisting of nickel oxide ribbons extending along (001) that are connected by corner sharing [TeO3] and [TeO4] groups to build the open framework structure. The chlorine atoms and the Te-lone pairs are facing voids in the oxide framework. The new compound undergoes two successive antiferromagnetic ordering transitions at ∼50 K and ∼10 K. The Curie–Weiss temperature obtained from detailed evaluation of the high-temperature magnetic susceptibilities is positive indicating predominant ferromagnetic superexchange interactions between the Ni magnetic moments.

Graphical abstract: The new nickel tellurite chloride compound Ni15Te12O34Cl10 – synthesis, crystal structure and magnetic properties

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Publication details

The article was received on 18 Sep 2012, accepted on 24 Oct 2012 and first published on 24 Oct 2012


Article type: Paper
DOI: 10.1039/C2DT32158K
Citation: Dalton Trans., 2013,42, 1394-1399
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    The new nickel tellurite chloride compound Ni15Te12O34Cl10 – synthesis, crystal structure and magnetic properties

    D. Zhang, M. Johnsson, S. Lidin and R. K. Kremer, Dalton Trans., 2013, 42, 1394
    DOI: 10.1039/C2DT32158K

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