Crystal structure of Cs2GdNb6Cl15O3 in the structural evolution of niobium oxychlorides with octa-hedral Nb6-cluster units

Cs2GdNb6Cl15O3, dicaesium gadolinium hexa-niobium penta-deca-chloride trioxide, was synthesized by solid-state reactions starting from a stoichiometric mixture of CsCl, Gd2O3, Nb, NbCl5, and Nb2O5. The crystal structure is based on octa-hedral Nb6 cluster units (point group symmetry 3.2) with compos...

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Bibliographic Details
Published in:Acta crystallographica. Section E, Crystallographic communications Crystallographic communications, 2023-11, Vol.79 (Pt 11), p.1008-1011
Main Authors: Silaban, Saronom, Haryani, Maefa Eka, Gulo, Fakhili, Perrin, Christiane
Format: Article
Language:English
Subjects:
Chemical Sciences
Research Communications
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Summary:Cs2GdNb6Cl15O3, dicaesium gadolinium hexa-niobium penta-deca-chloride trioxide, was synthesized by solid-state reactions starting from a stoichiometric mixture of CsCl, Gd2O3, Nb, NbCl5, and Nb2O5. The crystal structure is based on octa-hedral Nb6 cluster units (point group symmetry 3.2) with composition [(Nb6Cli 9Oi 3)Cla 6]5- where i and a denote inner and outer ligands. Cs2GdNb6Cl15O3 exhibits 14 valence electrons per cluster unit. The cluster units are linked to each other by CsI and GdIII atoms, whereby CsI (site symmetry 3..) is 12-coordinated by six Cli and six Cla ligands belonging to six neighboring cluster units and GdIII (site symmetry 3.2) is 9-coordinated by three Oi and six Cli ligands belonging to three adjacent cluster units. The arrangement of cluster units corresponds to a stacking of …AA'A… layers along [001]. Cs2GdNb6Cl15O3 is isotypic with Cs2UNb6Cl15O3.
ISSN:2056-9890
2056-9890
DOI:10.1107/S205698902300871X