New M+, M3+-arsenates – the framework structures of AgM3+(HAsO4)2 (M3+ = Al, Ga) and M+GaAs2O7 (M+ = Na, Ag)

Schwendtner, K.; Kolitsch, U.

doi:10.1107/S2056989017005631

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 1
The principal building units of (a) AgAl(HAsO₄)₂ and (b) AgGa(HAsO₄)₂, shown as displacement ellipsoids at the 70% probability level. The H atom is shown as a sphere with arbitrary radius. Part (b) shows the split position for Ag in AgGa(HAsO₄)₂. [Symmetry codes: (ii) −x, y, −z + $[{1\over 2}]$ ; (iii) x + $[{1\over 2}]$ , y + $[{1\over 2}]$ , z; (iv) −x + $[{1\over 2}]$ , y + $[{1\over 2}]$ , −z + $[{1\over 2}]$ ; (vii) −x + $[{1\over 2}]$ , −y + $[{1\over 2}]$ , −z; (viii) x + $[{1\over 2}]$ , −y + $[{1\over 2}]$ , z − $[{1\over 2}]$ .]

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 73| Part 5| May 2017| Pages 785-790

https://doi.org/10.1107/S2056989017005631

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