On basic thallium sulfates: Structure of Tl2Tl OH(SO4)2 |
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| Authors: | F Abraham G Nowogrocki B Jolibois G Laplace |
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| Institution: | 1. Laboratoire de Cristallochimie, E.N.S.C.L. B.P. 108, 59652 Villeneuve d''Ascq Cédex France;2. Université de Valenciennes, 59326 Valenciennes Cédex, France |
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| Abstract: | The Tl2TlOH(SO4)2 compound is monoclinic, a = 7.758 (3), b = 17.587 (9), c = 7.356 (3) Å, β = 119.91 (3)°, S. G. Cc, Z = 4. The structure was solved by full-matrix least square refinement to R = 0.033 from 1242 single-crystal reflections collected on an automated diffractometer. Tl+ ions ensure bonding between TlIIIOH(SO4)2]∞ sheets. These sheets may be viewed as criss-crossing TlSO4 chains. In the 101] direction, the linking of TlIII is reinforced by bidentate OH groups, so the usual hexacoordination of trivalent thallium is preserved. A transition occurring at 104°C is under investigation. |
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| Keywords: | To whom correspondence should be addressed |
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