6,7-Difluoro-1,2,3,4-tetrahydroquinoxaline-5,8-dicarbonitrile
| Autor: | Ming-Yang He, Jing Li, Xiao-Chuan Jia, Bao-Hua Qu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Acta Crystallographica Section E, Vol 69, Iss 3, Pp o376-o376 (2013) |
| Druh dokumentu: | article |
| ISSN: | 16005368 1600-5368 |
| DOI: | 10.1107/S1600536813003206 |
| Popis: | In the title compound, C10H6F2N4, the Car—N bonds are slightly shortened with respect to a standard aniline C—N bond [1.3580 (16) and 1.3618 (16) versus 1.39 Å], thus indicating some π–π conjgation with the electron-acceptor CN groups. The molecule, except for two C atom of the ethylene bridge, is nearly planar, the largest deviation of the other non-H atoms from the mean plane being 0.309 (2) Å. The N—C—C—N torsion angle involving the ethylene bridge is 50.23 (18)°. In the crystal, molecules are connected by pairs of N—H...N hydrogen bonds into chains along [21-1]. |
| Databáze: | Directory of Open Access Journals |
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