title: (1,2-Dicarba-closo-dodeca-boran-yl)trimethyl-methanaminium iodide.
abstract: The title compound, [1-(CH(3))(3)NCH(2)-1,2-C(2)B(10)H(11)](+)·I(-) or C(6)H(22)B(10)N(+)·I(-), was obtained by the reaction of (1,2-dicarba-closo-dodeca-boran-yl)dimethyl-methanamine with methyl iodide. The asymmetric unit contains two iodide anions and two (o-carboran-yl)tetra-methyl-ammonium cations. The bond lengths and angles in the carborane cage are within normal ranges, but the N-C(methyl-ene)-C(cage) angle is very large [120.2 (2)°] because of repulsion between the carborane and tetra-methyl-ammonium units. In the crystal, ions are linked through C-H⋯I hydrogen bonds.
authors.forename: Jong-Dae
authors.initials: JD
authors.lastname: Lee
authors.forename: Won-Sik
authors.initials: WS
authors.lastname: Han
authors.forename: Il-Hwan
authors.initials: IH
authors.lastname: Suh
authors.forename: Sang Ook
authors.initials: SO
authors.lastname: Kang
references.citation: Acta Crystallogr C. 2001 Mar;57(Pt 3):306-8
references.pmid: 11250588
references.citation: Acta Crystallogr C. 2001 Nov;57(Pt 11):1295-6
references.pmid: 11706254
references.citation: Acta Crystallogr C. 2004 Aug;60(Pt 8):o545-6
references.pmid: 15295182
references.citation: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references.pmid: 18156677