The title compound, C 18 H 20 N 2 O 6 , has two independent molecules in the asymmetric unit. Intramolecular N-HÁ Á ÁO and C-HÁ Á ÁO hydrogen bonds make the molecules essentially planar. The crystal packing is stabilized by C-HÁ Á ÁO and C-HÁ Á Á interactions.
N,N′-Bis(2-methylphenyl)oxamide
✍ Scribed by Wen, Yong-Hong ;Xu, Li-Li ;Li, Xue-Mei ;Zhang, Shu-Sheng
- Publisher
- International Union of Crystallography
- Year
- 2006
- Tongue
- English
- Weight
- 186 KB
- Volume
- 62
- Category
- Article
- ISSN
- 1600-5368
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📜 SIMILAR VOLUMES
The molecule of the title compound, C 16 H 16 N 2 O 4 , lies on a crystallographically imposed center of symmetry at the midpoint of the C-C bond of the oxamide unit. An intramolecular C-HÁ Á ÁO hydrogen bond forms a six-membered ring, and molecules are linked into ribbons along the a axis by N-HÁ Á
The molecule of the title compound, C 14 H 10 N 4 O 6 , lies on a crystallographically imposed center of symmetry at the midpoint of the C-C bond of the oxamide unit. Molecules are linked into zigzag chains by N-HÁ Á ÁO hydrogen bonds. The packing is further stabilized by van der Waals forces.
In the crystal structure of the title complex, C 21 H 21 N, the molecule lies on a twofold rotation axis. The N atom is sp 2 hybridized. Comparisons are made with similar compounds in this series.
The title compound, C 16 H 18 N 4 S 2 , has a crystallographic inversion centre at the mid-point of the central C-C bond. The plane of the dithiooxamide fragment is approximately perpendicular to the plane of the dimethylene bridge [dihedral angle = 84.8 (1) ], the plane of which is in turn normal t