title: N-[3-(Di-methyl-amino)-prop-yl]-N,N',N',N'',N''-penta-methyl-guanidinium tetra-phenyl-borate.
abstract: In the title salt, C11H27N4 (+)·C24H20B(-), the C-N bond lengths in the central CN3 unit of the guanidinium ion are 1.333 (4), 1.334 (4) and 1.351 (4) Å, indicating partial double-bond character. The C atom of this unit is bonded to the three N atoms in a nearly ideal trigonal-planar geometry [N-C-N angles = 118.8 (3), 120.0 (3) and 121.2 (3)°] and the positive charge is delocalized in the CN3 plane. The bonds between the N atoms and the terminal C-methyl groups of the guanidinium moiety have values in the range 1.459 (4)-1.478 (4) Å, close to a typical single bond. In the crystal, there are C-H⋯π inter-actions between the guanidinium H atoms and the phenyl rings of the tetra-phenyl-borate ion. These inter-actions combine to form a ladder of linked chains of ions which runs parallel to the c axis.
authors.affiliation: Fakultät Chemie/Organische Chemie, Hochschule Aalen, Beethovenstrasse 1, D-73430 Aalen, Germany.
authors.forename: Ioannis
authors.initials: I
authors.lastname: Tiritiris
references.citation: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references.pmid: 18156677
references.citation: Acta Crystallogr Sect E Struct Rep Online. 2013 Mar 1;69(Pt 3):o337-8
references.pmid: 23476532