The molecule of the title compound, C 18 H 10 F 8 N 2 O 2 , is located on an inversion center. The piperazine ring adopts a chair conformation and the two tetrafluorophenyl rings are strictly parallel to each other. The molecules are connected by C-HÁ Á ÁO hydrogen bonds into a one-dimensional chain
N,N′-Bis(4-pyridylformyl)piperazine
✍ Scribed by Ding, Cai-Feng ;Zhu, Mei ;Li, Xue-Mei ;Zhang, Shu-Sheng ;Xu, Hong ;Ouyang, Ping-Kai
- Publisher
- International Union of Crystallography
- Year
- 2005
- Tongue
- English
- Weight
- 160 KB
- Volume
- 61
- Category
- Article
- ISSN
- 1600-5368
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The title compound, [ZnCl 2 (C 16 H 20 N 4 )] n , was prepared from the reaction of N,N H -bis(4-pyridylmethyl)piperazine (bpmp) and ZnCl 2 . The asymmetric unit contains one Cl atom, half a Zn II ion and half a bmpb moiety. The Zn II ion, which lies on a twofold axis, has a distorted tetrahedral co
The title compound, C~8~H~12~Cl~2~N~2~O~2~, contains two half-molecules in the asymmetric unit. The complete molecule is generated by inversion symmetry in both cases.
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.