The X-ray crystal structure of benzimidazolium dichromate is determined. The compound C
14H
14Cr
2N
4O
7 is Triclinic in
P-1 with
a = 8.2722(8) Å,
b = 10.0269(10) Å,
c = 11.7001(11) Å,
= 102.073(2)°,
=100.483(2)°,
= 67.288(2)°,
V = 869.88(15) Å
3,
D
calc = 1.734 g/cm
3, and
Z = 2. A dichromate ion connects two benzimidazolium rings via hydrgen bonds, as leads to face-to-face intramolecular aromatic stacking. The major force of crystal formation comes from hydrogen bonds, and an intermolecular hydrogen bridge is formed to connect two neighbored dichromate ions.
Benzimidazolium dichromate - X-ray crystal structure - aromatic stacking - hydrogen bridge