title: 3,3'-Diethyl-1,1'-[anthracene-9,10-diylbis(oxyethyl-ene)]diimidazolium diiodide.
abstract: In the title centrosymmetric compound, C(28)H(32)N(4)O(2) (2+) 2I(-), the two midazole rings are approximately perpendicular to the central anthracene ring system [dihedral angle = 86.6 (2)°]. The ionic units are linked into a two-dimensional network parallel to (01) by C-H⋯I hydrogen bonds and π-π inter-actions involving the anthracene ring system and imidazole rings [centroid-centroid distance = 3.717 (3) Å].
authors.affiliation: School of Materials Science and Engineering, Tianjin Polytechnic University, No. 63 Chenglin Road, Tianjin 300160, People's Republic of China.
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Hou