Biblio. IMN

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Driss, D., Cadars, S., Deniard, P., Mevellec, J. .-Y., Corraze, B., Janod, E. & Cario, L. (2017) Crystal structure and chemical bonding in the mixed anion compound BaSF. Dalton Transactions, 46 16244–16250. 
Added by: Richard Baschera (2018-02-08 08:55:28)   Last edited by: Richard Baschera (2018-02-08 08:59:31)
Type de référence: Article
DOI: 10.1039/c7dt03611f
Clé BibTeX: Driss2017
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Catégories: IMN, MIOPS, PMN
Créateurs: Cadars, Cario, Corraze, Deniard, Driss, Janod, Mevellec
Collection: Dalton Transactions
Consultations : 8/310
Indice de consultation : 2%
Indice de popularité : 0.5%
BaSF was synthesised by a solid state reaction at high temperature and its crystal structure was determined thanks to X-ray diffraction on a single crystal. This transparent yellow fluorochalcogenide has an inter-growth structure built from the stacking of fluorite type layers and sulfur layers. In BaSF sulfur atoms form dimers with interatomic distances as short as 2.1074(10) angstrom. DFT calculations confirm that this compound is a band insulator with the Fermi level lying in between the antibonding pi* and sigma* molecular orbitals of the sulfur dimers. Reflectance measurements show that the optical band gap of BaSF is about 2.7 eV in good agreement with the value found from DFT calculations.
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