High-pressure syntheses of α-RE2B4O9 (RE = Sm, Ho), with a structure type displaying edge-sharing BO4 tetrahedra

Emme, H.; Huppertz, H.

doi:10.1107/S0108270104030446

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 2
The distortion of the B8O₄ tetrahedron in α-Sm₂B₄O₉ next to the two edge-sharing tetrahedra. Displacement ellipsoids are drawn at the 90% probability level. [Symmetry codes: (i) $[{1\over2}-x, {3\over2}-y, -z]$ ; (ii) x, 1+y, z; (iii) $[{1\over2}-x, y+{1\over2}, {1\over2}-z]$ ; (iv) $[{1\over2}-x, y-{1\over2}, {1\over2}-z]$ .]

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 61| Part 3| February 2005| Pages i29-i31

doi:10.1107/S0108270104030446

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