N,N'-Bis(trifluoromethanesulfonyl)oxamide

N,N′-Bis(2-methylphenyl)oxamide

✍ Wen, Yong-Hong ;Xu, Li-Li ;Li, Xue-Mei ;Zhang, Shu-Sheng 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 186 KB

N,N′-Bis(3-methoxyphenyl)oxamide

✍ Wen, Yong-Hong ;Zhang, Kun ;Li, Xue-Mei ;Bi, Sai ;Zhang, Shu-Sheng 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 161 KB

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

N,N′-Bis(4-nitrophenyl)oxamide

✍ Wen, Yong-Hong ;Shen, Xin ;Bi, Sai ;Zhang, Shu-Sheng 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 187 KB

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.

N,N′-Bis(2-pyridylethyl)oxamide

✍ Xu, An-Wu ;Zhang, Hua-Xin ;Tan, Hai-Yan ;Kang, Bei-Sheng 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 205 KB

N,N′-Bis(3,5-dimethoxyphenyl)oxamide

✍ Gu, Wen ;Tang, Qing-Gang 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 99 KB

N,N′-Bis(2,5-dimethoxyphenyl)oxamide

✍ Wen, Yong-Hong ;Zhang, Kun ;Li, Xue-Mei ;Tang, Xiao-Fang ;Zhang, Shu-Sheng 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 122 KB

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.