Research Article: Dicyclo­hexyl­ammonium hydrogen phenyl­phospho­nate

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Tidiane Diop, Libasse Diop, Thierry Maris, Helen Stoeckli-Evans.


In the title salt, [(C6H11)2NH2]+·[C6H5PO2(OH)]−, the anion is monodeprotonated and acts as both a hydrogen-bond donor and acceptor. The anions are linked by pairs of O—H⋯O inter­actions, forming inversion dimers with R22(8) ring motifs. These dimers are bridged by two dicyclo­hexyl­aminium cations via pairs of N—H⋯O hydrogen bonds, giving R44(12) ring motifs, forming chains propagating along [010]. The chains are bridged by C—H⋯O inter­actions, forming a two-dimensional network lying parallel to (101).

Partial Text

For the crystal structure of phenyl­phospho­nic acid, see: Weakley (1976 ▶). For the crystal structure of anilinium phenyl­phospho­nate, see: Mahmoudkhani & Langer (2002 ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶).