4-(4-Pyrid­yl)pyridinium 3-amino-5-carb­oxy-2,4,6-triiodo­benzoate–5-amino-2,4,6-triiodo­isophthalic acid (1/1)

摘要

In the title ammonium carboxyl­ate–carb­oxy­lic acid co-cystal, C10H9N2 +·C8H3I3NO4 −.C8H4I3NO4, the carboxyl­ate anion and carb­oxy­lic acid mol­ecule are linked by O—H⋯O and N—H⋯O hydrogen bonds to form a chain running along the c axis of the monoclinic unit cell. The chains are linked by pyridinum and pyridine N—H⋯O hydrogen bonds, generating a layer motif. O—H⋯N and O—H⋯O hydrogen bonds are also observed.