3-Carboxypyrazino[2,3-f][1,10]phenanthrolin-9-ium-2-carboxylate
oleh: Xiao-Ning Zhang, Feng Fu, Dong-Sheng Li, Cai-Xia Meng
| Format: | Article |
|---|---|
| Diterbitkan: | International Union of Crystallography 2010-04-01 |
Deskripsi
In the title zwitterionic compound, C16H8N4O4, the dihedral angle between the carboxyl and carboxylate groups is 72.14 (2)°. In the crystal, molecules are linked by strong intermolecular O—H...O− and N+—H...O− hydrogen bonds into double chains extended along [001]. These chains are additionally stabilized by π–π stacking interactions between the pyridine and benzene rings [centroid–centroid distance = 3.5542 (8) Å].