Abstract
The structure of the title compound, vanadium indium pentadecamolybdenum nonadecaselenide, V1.42In1.83Mo15Se19, is isotypic with In2.9Mo15Se19 [Grüttner et al. (1979 ▶). Acta Cryst. B35, 285–292]. It is characterized by two cluster units Mo6Sei 8Sea 6 and Mo9Sei 11Sea 6 (where i represents inner and a apical atoms) that are present in a 1:1 ratio. The cluster units are centered at Wyckoff positions 2b and 2c and have point-group symmetry and , respectively. The clusters are interconnected through additional Mo—Se bonds. In the title compound, the V3+ cations replace the trivalent indium atoms present in In2.9Mo15Se19, and a deficiency is observed on the monovalent indium site. One Mo, one Se and the V atom are situated on mirror planes, and two other Se atoms and the In atom are situated on threefold rotation axes.
Highlights
Sciences Chimiques de Rennes, UMR CNRS No 6226, Université de Rennes I – INSA Rennes, Avenue du Général Leclerc, 35042 Rennes CEDEX, France
Sea6 that are present in a 1:1 ratio
The cluster units are centered at Wyckoff positions 2b and 2c and have pointgroup symmetry 3 and 6, respectively
Summary
Sciences Chimiques de Rennes, UMR CNRS No 6226, Université de Rennes I – INSA Rennes, Avenue du Général Leclerc, 35042 Rennes CEDEX, France. Key indicators: single-crystal X-ray study; T = 293 K; mean (Mo–Se) = 0.001 Å; disorder in main residue; R factor = 0.037; wR factor = 0.087; data-to-parameter ratio = 35.7. The structure of the title compound, vanadium indium pentadecamolybdenum nonadecaselenide, V1.42In1.83Mo15Se19, is isotypic with In2.9Mo15Se19 [Grüttner et al (1979). Sea (where i represents inner and units Mo6Se8i Sea and Mo9Se11 a apical atoms) that are present in a 1:1 ratio. The cluster units are centered at Wyckoff positions 2b and 2c and have pointgroup symmetry 3 and 6, respectively. The clusters are interconnected through additional Mo—Se bonds. The V3+ cations replace the trivalent indium atoms present in In2.9Mo15Se19, and a deficiency is observed on the monovalent indium site. One Mo, one Se and the V atom are situated on mirror planes, and two other Se atoms and the In atom are situated on threefold rotation axes
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