Abstract
The crystal packing in the title compound, C5H14N22+·2H2AsO4−, involves anion-to-anion O—H⋯O hydrogen bonds, resulting in double chains of dihydrogenarsenate tetrahedra. The double chains are crosslinked by further O—H⋯O bonds to result in a three-dimensional framework that accommodates the organic cations in large cavities. The cations interact with the framework by way of N—H⋯O bonds.
Highlights
The crystal packing in the title compound, C5H14N22+2H2AsO4, involves anion-to-anion O—H O hydrogen bonds, resulting in double chains of dihydrogenarsenate tetrahedra
For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e
The cations interact with the framework by way of N—H O
Summary
For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e. The crystal packing in the title compound, C5H14N22+2H2AsO4, involves anion-to-anion O—H O hydrogen bonds, resulting in double chains of dihydrogenarsenate tetrahedra. O—H O bonds to result in a three-dimensional framework that accommodates the organic cations in large cavities. The cations interact with the framework by way of N—H O bonds. The title compound, (I) (Fig. 1), was prepared as part of our ongoing structural studies of hydrogen-bonding interactions in protonated-amine (di)hydrogen arsenates 2005a,b; Todd & Harrison, 2005) These simple organic salts show interesting packing motifs, strongly influenced by the interplay of N—H O and O—H O hydrogen bonds. Both the (H2AsO4) dihydrogenarsenate groups in (I) show their normal tetrahedral geometry [mean As—O =. 1.677 (2) Å], with the protonated As—OH vertices showing their expected lengthening relative to the unprotonated As—
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