Abstract
In the crystal structure of the title salt, C12H30N4 2+·2C24H20B−, the C—N bond lengths in the central CN3 unit of the guanidinium ion are 1.3388 (17), 1.3390 (16) and 1.3540 (17) Å, indicating partial double-bond character in each. The central C atom is bonded to the three N atoms in a nearly ideal trigonal-planar geometry 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, all have values close to a typical single bond [1.4630 (16)–1.4697 (17) Å]. C—H⋯π interactions are present between the guanidinium H atoms and the phenyl C atoms of one tetraphenylborate ion. The phenyl rings form a kind of aromatic pocket, in which the guanidinium ion is embedded.
Highlights
C12H30N42+2C24H20B, In the crystal structure of the title salt, the C—N bond lengths in the central CN3 unit of the guanidinium ion are 1.3388 (17), 1.3390 (16) and
The central C atom is bonded to the three N atoms in a nearly ideal trigonal-planar geometry and the positive charge is delocalized in the CN3 plane
C—H interactions are present between the guanidinium H atoms and the phenyl C
Summary
Fakultät Chemie/Organische Chemie, Hochschule Aalen, Beethovenstrasse 1, D-73430 Aalen, Germany. R factor = 0.045; wR factor = 0.108; data-to-parameter ratio = 20.0. C12H30N42+2C24H20B, In the crystal structure of the title salt, the C—N bond lengths in the central CN3 unit of the guanidinium ion are 1.3388 (17), 1.3390 (16) and. 1.3540 (17) Å, indicating partial double-bond character in each. The central C atom is bonded to the three N atoms in a nearly ideal trigonal-planar geometry and the positive charge is delocalized in the CN3 plane. C—H interactions are present between the guanidinium H atoms and the phenyl C atoms of one tetraphenylborate ion. The phenyl rings form a kind of aromatic pocket, in which the guanidinium ion is embedded
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