N,N′‐Dimethylpiperazinium(2+) phosphonoacetate: hydrogen‐bonded anion sheets containing cation‐templated R66(28) rings |
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Authors: | Dorcas M M Farrell George Ferguson Alan J Lough Christopher Glidewell |
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Abstract: | In the title compound, C6H16N22+·2C2H4O5P?, the cations lie across centres of inversion; in the anions, two of the H‐atom sites have 0.50 occupancy. The anions are linked by short O—H?O hydrogen bonds O?O 2.465 (3)–2.612 (3) Å and O—H?O 165–171°] into sheets of alternating R(12) and R(28) rings, both of which are centrosymmetric; the cations lie at the centres of the larger rings linked to the anion sheet by N—H?O hydrogen bonds N?O 2.642 (2) Å and N—H?O 176°]. |
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