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Thallium(III) chloride in organic solvents: Synthesis, solutions and solvates. The crystal structures of trichlorobis(dimethylsulfoxide)thallium(III) and tribromobis(dimethylsulfoxide)thallium(III)
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, The Institute of Technology.
Russian Acadamy of Science.
Moscow MV Lomonosov State University.
2009 (English)In: INORGANICA CHIMICA ACTA, ISSN 0020-1693 , Vol. 362, no 7, 2293-2298 p.Article in journal (Refereed) Published
Abstract [en]

The synthesis of thallium(III) chloride and bromide was performed in solution by chlorination and bromination, respectively, of the suspensions of the corresponding thallium(I) halides in acetonitrile. Crystalline compounds TlX3(CH3CN)(2) (X = Cl , Br) were prepared from the acetonitrile solutions. Thallium(III) chloride and bromide in dimethylsulfoxide solution were obtained by dissolving the corresponding solid compounds TlX3(CH3CN)(2) (Cl, Br) in DMSO. Both acetonitrile and dimethylsulfoxide solutions of thallium(III) chloride were studied by UV-Vis and Tl-205 NMR spectroscopy. The UV-Vis study of the TlCl3-CH3CN system showed presence of at least two thallium(III) chloride species. Only one signal arising from the thallium(III) species was, however, detected by the Tl-205 NMR in the solution because of the fast chemical exchange. The Tl-205 NMR study of thallium(III) chloride in dimethylsulfoxide showed three separate signals assigned to the solvated TlCl4-, TlCl3 and TlCl2+ species. The crystalline compounds of trichlorobis(dimethylsulfoxide) thallium(III) and tribromobis(dimethylsulfoxide) thallium(III) were prepared and their crystal structures were solved by single-crystal X-ray analysis. The thallium atom in the complexes has a trigonal bipyramidal environment built by three halide ions occupying equatorial positions of the polyhedron and two oxygen atoms of the DMSO molecules in the apical positions.

Place, publisher, year, edition, pages
2009. Vol. 362, no 7, 2293-2298 p.
Keyword [en]
Thallium(III) chloride, Thallium(III) bromide, Dimethylsulfoxide, Acetonitrile, Complex
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-18283DOI: 10.1016/j.ica.2008.10.028OAI: diva2:217859
Available from: 2009-05-17 Created: 2009-05-15 Last updated: 2009-05-17

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Maliarik, Mikhail
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Department of Physics, Chemistry and BiologyThe Institute of Technology
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