Syntheses and crystal structures of the Ba7UM2S12.5O0.5 (M = Ti, Si/Fe) compounds

Mesbah, Adel and Jai, Prakash and Beard, Jessica C and Malliakas, Christos D and Ibers, James A (2019) Syntheses and crystal structures of the Ba7UM2S12.5O0.5 (M = Ti, Si/Fe) compounds. Materials Letters, 252. pp. 293-295. ISSN 0167577X

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Abstract

Black single crystals of the Ba7UM2S12.5O0.5 (M = Ti, Si/Fe) compounds were obtained by standard solid-state chemistry method at 1123 K. Both compounds crystallize at 100 K in the Ba7UV2S12.5O0.5 structure type in space group I4/mcm of the tetragonal system with a = 16.1451(3) Å and c = 9.5310(2) Å (Ba7UTi2S12.5O0.5) and a = 16.1218(16) Å and c = 9.4103(11) Å (Ba7USi1.7Fe0.3S12.5O0.5). The crystal structures consist of infinite chains of U atoms octahedrally coordinated through the sharing of O/S corners along the c axis. The M atoms form isolated MS4 tetrahedra aligned also along the c axis. The space between US5O and MS4 polyhedra is filled by Ba atoms.

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IITH Creators:	IITH Creators ORCiD Jai, Prakash UNSPECIFIED
Item Type:	Article
Subjects:	Chemistry
Divisions:	Department of Chemistry
Depositing User:	Team Library
Date Deposited:	24 Jun 2019 05:17
Last Modified:	24 Jun 2019 05:17
URI:	http://raiithold.iith.ac.in/id/eprint/5535
Publisher URL:	http://doi.org/10.1016/j.matlet.2019.05.092
Related URLs:	Google Scholar

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