2-Dimethylamino-1-(2-ethoxy-2-oxo-ethyl)-3-methyl-3,4,5,6-tetrahydro-pyrimidin-1-ium tetraphenylborate.
Isolated guanidinium ions and tetra-phenyl-borate ions are present in the crystal structure of the title compound, C(11)H(22)N(3)O(2) (+)·C(24)H(20)B(-). In the guanidinium ion, the dihedral angle between the N/C/N and C/C/C planes being 49.9 (1)°. The six-membered ring exhibits a half-chair conformation. The C-N bond lengths in the cation range between 1.3335 (16) and 1.3552 (16) Å, indicating charge delocalization on the CN(3) plane. In the crystal, the cations are connected by C-H⋯O hydrogen bonds, generating a chain along the c axis.
Ioannis
I
Tiritiris
Willi
W
Kantlehner