Received 31 August 2011
The title compound C14H29N4+·I- salt, was obtained by the reaction of cage adamanzane-type aminal 1,3,6,8-tetraazatricyclo[126.96.36.199,8]undecane with heptyl iodide. In the cation, the bond lengths and angles are within normal ranges, except for one N-C(ring) bond distance of 1.542 (3) Å, which is unexpectedly long compared with related compounds. In the crystal, ions are linked through C-HI hydrogen bonds. The crystal studied was a non-merohedral twin with a minor twin domain of 6.56 (5)%.
For the preparation of the title compound, see: Rivera et al. (2011). For synthetic applications of quaternary ammonium salts, see: Starks (1971). For related structures, see: Betz & Klüfers (2007); Lee et al. (2011).
Data collection: CrysAlis PRO (Agilent, 2010); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SIR2002 (Burla et al., 2003); program(s) used to refine structure: JANA2006 (Petrícek et al., 2006); molecular graphics: Diamond (Brandenburg & Putz, 2005); software used to prepare material for publication: JANA2006.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BX2371 ).
We acknowledge the Dirección de Investigaciones, Sede Bogotá (DIB) de la Universidad Nacional de Colombia, for financial support of this work, as well as the the Institutional research plan No. AVOZ10100521 of the Institute of Physics and the project Praemium Academiae of the Academy of Science of the Czech Republic. JS-B acknowledges the Facultad de Ciencias de la Universidad Nacional de Colombia for a fellowship.
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