2-Methylpiperazinium bis(dihydrogenarsenate)
✍ Scribed by Wilkinson, Hazel S. ;Harrison, William T. A.
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 194 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
The title compound, C~5~H~14~N~2~
^2+^·2H~2~AsO~4~
^−^, contains a network of centrosymmetric doubly protonated 2-methylpiperazinium cations, showing disorder of the methyl group, accompanied by dihydogenarsenate anions. The component species interact by way of cation-to-anion N—H...O and anion-to-anion O—H...O hydrogen bonds, the latter leading to infinite sheets of the H~2~AsO~4~
^−^ anions containing R
~6~
^6^(24) supramolecular loops.
📜 SIMILAR VOLUMES
The title compound, (C 3 H 12 N 2 )[H 2 AsO 4 ] 2 , contains a network of propane-1,3-diaminium cations and dihydrogenarsenate anions [mean As-O = 1.682 (2) A ˚]. The crystal packing involves anion-to-anion O-HÁ Á ÁO hydrogen bonds, resulting in double chains of dihydrogenarsenate tetrahedra. Cation
The title compound, (C 4 H 12 N 2 )[Co(H 2 O) 6 ][Co(C 7 H 3 O 4 ) 2 ] 2 Á-8H 2 O, was obtained by the reaction of cobalt(II) nitrate hexahydrate with the proton-transfer compound piperazinediium pyridine-2,6-dicarboxylate or (pipzH 2 )(pydc) (where pipz is piperazine and pydcH 2 is pyridine-2,6-dic