Kabbour, H. & Cario, L. (2006) Ae(2)Sb(2)X(4)F(2) (Ae = Sr, Ba): New members of the homologous series Ae(2)M(1+n)X(3+n)F(2) designed from rock salt and fluorite 2D building blocks. Inorg. Chem. 45 2713–2717.
Added by: Florent Boucher (2016-05-12 13:21:37)
|Type de référence: Article
Numéro d'identification (ISBN etc.): 0020-1669
Clé BibTeX: Kabbour2006
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Mots-clés: chemistry, franckeite-type, inorganic-compounds, layers, metal, misfit compound, pb, sheets
Créateurs: Cario, Kabbour
Collection: Inorg. Chem.
Consultations : 3/436
Indice de consultation : 2%
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We have designed new compounds within the homologous series Ae(2)F(2)M(1+n)X(3+n) (Ae = Sr, Ba; M = main group metal; n = integer) built up from the stacking of 2D building blocks of rock salt and fluorite types. By incrementally increasing the size of the rock salt 2D building blocks, we have obtained two new n = 1 members of this homologous series, namely, Sr2F2Sb2Se4 and Ba2F2Sb2Se4. We then succeeded in synthesizing these compounds using a high-temperature ceramic method. The structure refinements from the powder or single-crystal X-ray diffraction data confirmed presence of the expected alternating stacking of fluorite [Ae(2)F(2)] (Ae = Sr, Ba) and rock salt [Sb2Se4] 2D building blocks. However the Ba derivative shows a strong distortion of the [Sb2Se4] block and a concomitant change of the Sb atom coordination likely related to the lone-pair activity.
Added by: Florent Boucher