3-Carboxy-pyrazino[2,3-f][1,10]phenanthrolin-9-ium-2-carboxyl-ate.
Ontology highlight
ABSTRACT: In the title zwitterionic compound, C(16)H(8)N(4)O(4), the dihedral angle between the carboxyl and carboxyl-ate groups is 72.14?(2)°. In the crystal, mol-ecules are linked by strong inter-molecular O-H?O(-) and N(+)-H?O(-) hydrogen bonds into double chains extended along [001]. These chains are additionally stabilized by ?-? stacking inter-actions between the pyridine and benzene rings [centroid-centroid distance = 3.5542?(8)?Å].
SUBMITTER: Zhang XN
PROVIDER: S-EPMC2983978 | BioStudies | 2010-01-01T00:00:00Z
REPOSITORIES: biostudies
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