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The new nickel tellurite chloride compound ni15te12o34cl10 synthesis, crystal structure and magnetic properties
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK), Inorganic and Structural Chemistry.
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK), Inorganic and Structural Chemistry.
2013 (English)In: Dalton Transactions, ISSN 1477-9226, E-ISSN 1477-9234, Vol. 42, no 5, 1394-1399 p.Article in journal (Refereed) Published
Abstract [en]

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) over bar with the pseudomonoclinic cell parameters a = 10.3248(6) angstrom, b = 10.3249(6) angstrom, c = 11.6460(8) angstrom, alpha = 73.782(6)degrees, beta = 73.782(6)degrees, gamma = 63.51(2)degrees, Z = 1, R-1 = 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 similar to 50 K and similar to 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.

Place, publisher, year, edition, pages
2013. Vol. 42, no 5, 1394-1399 p.
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:su:diva-88316DOI: 10.1039/c2dt32158kISI: 000313616600013OAI: oai:DiVA.org:su-88316DiVA: diva2:611851
Funder
Swedish Research Council
Note

AuthorCount:4;

Available from: 2013-03-19 Created: 2013-03-12 Last updated: 2017-12-06Bibliographically approved

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