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![[Figure 2]](sq3119fig2mag.jpg)
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Figure 2
A view of the Si and V polyhedra that make up the framework of Rb2(VO)2[Si8O19]. Displacement ellipsoids are drawn at the 50% probability level. The [V2O8]8− dimer is linked to the Si1O4, Si2O4 and Si3O4 tetrahedra via corner sharing, while the Si4O4 tetrahedra interlink the separate silicate layers of a double layer by sharing atom O10. [Symmetry codes: (ii) −x, y, z; (iii) x, −y + 1, z + ![[{1\over 2}]](teximages/sq3119fi1.gif) ; (iv) x, y + 1, z.] |
![[Figure 2]](sq3119fig2.jpg)
 | STRUCTURAL CHEMISTRY |
ISSN: 2053-2296
