Bis(4-methyl­imidazolium) succinate succinic acid solvate

In the title compound, 2C(4)H(7)N(2) (+)·C(4)H(4)O(4) (2−)·C(4)H(6)O(4), the asymmetric unit consists of two 4-methyl­imidazolium cations, one succinate dianion and one netrual succinic acid mol­ecule and within the latter components, the C—O, C=O and C O bonds are clearly evidenced from their relative distances. In the crystal structure, the individual components are linked by inter­molecular N—H⋯O, O—H⋯O and C—H⋯O hydrogen bonds into a two-dimensional network parallel to the (101) plane in which R (3) (3)(9), R (3) (3)(12) and R (4) (4)(18) hydrogen-bond motifs are present.