Crystal structure of Na4(As2O5)(H2O)0.5 and a survey of the pyroarsenite anion, (As2O5)4−

Wolflehner, T.; Weil, M.

doi:10.1107/S2056989026002859

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 1
The (As₂O₅)^4– anion in the title compound in a side view (top) and approximately along the As1⋯As2 axis (bottom). Displacement ellipsoids are drawn at the 90% probability level; the calculated electron lone pairs ψ are indicated as spheres of arbitrary radius.

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 82| Part 4| April 2026| Pages 379-383

https://doi.org/10.1107/S2056989026002859

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