Dimethyl 2,2'-[2,2'-bi(1H-1,3-benzimidazole)-1,1'-di-yl]diacetate.
The whole mol-ecule of the title compound, C(20)H(18)N(4)O(4), is generated by an inversion center. The benzimidazole ring mean plane make a dihedral angle of 89.4 (8)° with the plane passing through the acetate group (COO). In the crystal, mol-ecules are linked via weak C-H⋯O hydrogen bonds and π-π inter-actions [centroid-centroid distance = 3.743 (3) Å] involving inversion-related benzimidazole groups.
Key Laboratory of Polymer Materials of Gansu Province, Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070,  People's Republic of China.
Huai-Ling
HL
Guo
Jia-Cheng
JC
Liu
Chao-Hu
CH
Xiao
Ting
T
Pang
Ping
P
Cao