N,N',N''-Tricyclo-hexyl-guanidinium iodide

In the title compound, C(19)H(36)N(3) (+)·I(-), the orientation of the cyclo-hexyl rings around the planar (sum of N-C-N angles = 360°) CN(3) (+) unit produces steric hindrance around the N-H groups. As a consequence of this particular orientation of the tricyclo-hexyl-guanidinium cation (hereafter denoted CHGH(+)), hydrogen bonding is restricted to classical N-H⋯I and non-clasical (cyclo-hex-yl)C-H⋯I hydrogen bonds. The propeller CHGH(+) cation and the oriented hydrogen-bonding interactions lead to a three-dimensional supra-molecular structure.