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Wheatley PS, Lough AJ, Ferguson G, et al. Ethane-1,2-diphosphonic acid as a building block in supramolecular chemistry; a pillared-layer framework and framework-encapsulated cations. Acta Crystallogr B. 2001;57:95-102doi: 10.1107/s0108768100014841.
Wheatley , P. S., Lough , A. J., Ferguson , G., Burchell , C. J., & Glidewell , C. (2001). Ethane-1,2-diphosphonic acid as a building block in supramolecular chemistry; a pillared-layer framework and framework-encapsulated cations. Acta crystallographica. Section B, Structural science, 5795-102. https://doi.org/10.1107/s0108768100014841
Wheatley , P S, et al. "Ethane-1,2-diphosphonic acid as a building block in supramolecular chemistry; a pillared-layer framework and framework-encapsulated cations." Acta crystallographica. Section B, Structural science vol. 57 (2001): 95-102. doi: https://doi.org/10.1107/s0108768100014841
Wheatley PS, Lough AJ, Ferguson G, Burchell CJ, Glidewell C. Ethane-1,2-diphosphonic acid as a building block in supramolecular chemistry; a pillared-layer framework and framework-encapsulated cations. Acta Crystallogr B. 2001 Feb;57:95-102. doi: 10.1107/s0108768100014841. PMID: 11173372.
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Acta Crystallogr B. 2001 Feb;57:95-102. doi: 10.1107/s0108768100014841.

Ethane-1,2-diphosphonic acid as a building block in supramolecular chemistry; a pillared-layer framework and framework-encapsulated cations.

Acta crystallographica. Section B, Structural science

P S Wheatley , A J Lough , G Ferguson , C J Burchell , C Glidewell

Affiliations

  1. School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST, Scotland.

PMID: 11173372 DOI: 10.1107/s0108768100014841

Abstract

The 1:1 adduct of piperazine and ethane-1,2-diphosphonic acid is a salt [C(4)H(12)N(2)](2+).[C(2)H(6)O(6)P(2)](2-), in which both ions lie across centres of inversion in space group P2(1)/c. The anions are linked by a single type of O-H...O hydrogen bond [O...O, 2.562 (3) A; H...O, 1.73 A, O-H...O, 169 degrees ] into (6, 3) nets built from a single type of R(4)(4)(22) ring. The cations lie between these nets, linked to them by two types of N-H...O hydrogen bond [N...O, 2.635 (3) and 2.735 (3) A; H...O 1.72 and 1.82 A, N-H...O, 175 and 177 degrees ] such that the cations link adjacent sheets, thus forming a pillared-layer framework. The aquated adduct formed between trimethylenedipiperidine and ethane-1,2-diphosphonic acid is also a salt [C(13)H(28)N(2)](2+).[C(2)H(6)O(6)P(2)](2-).2.8[H(2)O], in which there are 12 different types of hydrogen bond, eight O-H...O and four N-H...O. The anions are linked into chains by pairs of O-H...O hydrogen bonds and these chains are linked by the water molecules into a continuous three-dimensional framework. Within the anion/water framework are large voids which contain pairs of cations, linked to the framework by N-H...O hydrogen bonds.

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