4,4′-Tri­methyl­enedipyridinium bis­[carboxy­methyl­phos­pho­nate(1–)]: a three-dimensional framework structure built from O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds

Bowes, K.F.; Ferguson, G.; Lough, A.J.; Glidewell, C.

doi:10.1107/S0108270103011818

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

IUCr IT WDC

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Figure 2
Part of the crystal structure of (I

), showing the formation of a chain of edge-fused R₃³(16) rings containing anions only. For clarity, the unit-cell box and H atoms bonded to C atoms have been omitted. Atoms marked with an asterisk (*), hash (#), dollar sign ($) or ampersand (&) are at the symmetry positions (x, y, 1 + z), (x, y, −1 + z), (1 − x, $[1 \over 2]$ − y, − $[1 \over 2]$ + z) and (1 − x, $[1 \over 2]$ − y, $[1 \over 2]$ + z), respectively.

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 59| Part 8| July 2003| Pages o464-o466

doi:10.1107/S0108270103011818

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