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Octahedral Cluster Compounds in the Tungsten Bromide Chemistry: MW6Br14 and 2W6Br14. The Crystal Structure of CdW6Br14

Saadìa Ihmaine ; Laboratoire de Chìmie du Solide et Inorganique Moléculaire, URA CNRS 1495, Université de Rennes I, Avenue du Général Leclerc, 35042 Rennes Cédex, France
Christiane Perrin ; Laboratoire de Chìmie du Solide et Inorganique Moléculaire, URA CNRS 1495, Université de Rennes I, Avenue du Général Leclerc, 35042 Rennes Cédex, France
Marcel Sergent ; Laboratoire de Chìmie du Solide et Inorganique Moléculaire, URA CNRS 1495, Université de Rennes I, Avenue du Général Leclerc, 35042 Rennes Cédex, France


Puni tekst: engleski pdf 17.372 Kb

str. 877-884

preuzimanja: 143

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Sažetak

The title compounds synthesized by solid state reaction crystallize in the cubic system (Pn3) and are based on isolated [(WgBrgbBrg3]2- units. For MIIWgBr14 the units are linked together by divalent cations lying at octahedral sites of apical bromines belonging to six adjacent units. In the case of M^WgBr^, the cohesion of the stacking is effected by pairs of monovalent counter cations located at two alternant triangular sites of apical bromines, each of them built of three adjacent units; these two triangular sites correspond to a split octahedral one occupied by the divalent cation in the structure of MIIWgBr14. The structure of CdW6Br14) refined from single crystal X- ray diffraction data, is detailed.

Ključne riječi

Hrčak ID:

136699

URI

https://hrcak.srce.hr/136699

Posjeta: 324 *