Wyllieite-type Ag(1.09)Mn(3.46)(AsO(4))(3).
Acta Crystallogr Sect E Struct Rep Online
; 68(Pt 6): i40-i41, 2012 Jun 01.
Article
in En
| MEDLINE
| ID: mdl-22719272
ABSTRACT
Single crystals of wyllieite-type silver(I) manganese(II) tris-orthoarsenate(V), Ag(1.09)Mn(3.46)(AsO(4))(3), were grown by a solid-state reaction. The three-dimensional framework is made up from four Mn(2+)/Mn(3+) cations surrounded octa-hedrally by O atoms. The MnO(6) octa-hedra are linked through edge- and corner-sharing. Three independent AsO(4) tetra-hedra are linked to the framework through common corners, delimiting channels along [100] in which two partly occupied Ag(+) sites reside, one on an inversion centre and with an occupancy of 0.631â
(4), the other on a general site and with an occupancy of 0.774â
(3), both within distorted tetra-hedral environments. One of the Mn sites is also located on an inversion centre and is partly occupied, with an occupancy of 0.916â
(5). Related compounds with alluaudite-type or rosemaryite-type structures are compared and discussed.
Full text:
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Database:
MEDLINE
Language:
En
Journal:
Acta Crystallogr Sect E Struct Rep Online
Year:
2012
Type:
Article
Affiliation country:
Tunisia