Three new acid M+ arsenates and phosphates with multiply protonated As/PO4 groups

Schwendtner, K.; Kolitsch, U.

doi:10.1107/S2053229619008489

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 5
Comparison of (a) homeotypic (NH₄)(H₂AsO₄)(H₃AsO₄) with (b) Rb(H₂AsO₄)(H₃AsO₄) (Naili & Mhiri, 2001

). A shift (arrows in figure) of As1 in the b direction leads to a compression of the whole structure along c, and results in a change of the hydrogen-bonding network. Hydrogen bonds connecting As2O₄ tetrahedra along b are lost in (NH₄)(H₂AsO₄)(H₃AsO₄), but new hydrogen bonds now connect As1O₄ and As2O₄ along c.

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 75| Part 8| August 2019| Pages 1134-1141

https://doi.org/10.1107/S2053229619008489

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