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From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
Crystal structure of dimethyl 3,3'-[(4-fluoro-phen-yl)methyl-ene]bis-(1H-indole-2-carboxyl-ate)
Hong-Shun Sun1, Yu-Long Li1, Hong Jiang1
1Chemical Engineering Department, Nanjing Polytechnic Institute, Nanjing 210048, People's Republic of China.
Abstract:
In the title compound, C27H21FN2O4, the mean planes of the indole ring systems (r.m.s. deviations = 0.0263 and 0.0160 Å) are approximately perpendic-ular to one another, making a dihedral angle of 84.0 (5)°; the fluoro-benzene ring is twisted with respect to the mean planes of the two indole ring systems at 89.5 (5) and 84.6 (3)°. In the crystal, pairs of N-H⋯O hydrogen bonds link the mol-ecules into inversion dimers, which are further linked by N-H⋯O hydrogen bonds into supra-molecular chains propagated along the b-axis direction. Weak C-H⋯π inter-actions are observed between neighbouring chains.
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