Intermolecular -CH(3)...O(2)N-- contacts in two polymorphic modifications of (1E)-N'-[(E)-2-cyano-1-(dimethylamino)-2-nitrovinyl]-N,N-dimethylethanimidamide.
The title compound was synthesized and isolated in two crystal modifications. The structure of the orthorhombic modification was determined by the X-ray powder diffraction method and the structure of the monoclinic modification was determined using the X-ray single-crystal diffraction technique. The molecules in both polymorphs are E,E isomers. Intermolecular H(3)C....NO(2) contacts and their role in the formation of the polymorphic modifications are analyzed.
Tafeenko
V A
VA
Department of Chemistry, Moscow State University, 119899 Moscow, Russia. tafeenko@biocryst.phys.msu.su
Chernyshev
V V
VV
Yatsenko
A V
AV
Makarov
V A
VA
Sonneveld
E J
EJ
Peschar
R
R
Schenk
H
H