The crystal structure of 1-fluoro-4-(p-tolylethynyl)benzene, C15H11F

C15H11F, monoclinic, P21/n (no. 14), a = 6.2490(3) Å, b = 7.6343(4) Å, c = 24.2376(9) Å, β = 90.914(4)°, V = 1156.15(9) Å3, Z = 4, R gt (F) = 0.0619, wR ref(F 2) = 0.1829, T = 293(2) K.

Supramolecular synthesis with N-hetero-tolanes: liquid crystals and hydrogen-bonded and halogen-bonded co-crystals

Supramolecular, crystalline aggregates are obtained from EO-active N-hetero-tolanes by protonation or halogen bonding.

Modulating the assembly of N-benzylideneaniline by halogen bonding: crystal, cocrystal and liquid crystals

A halogen bond donor–acceptor N-benzylideneaniline self-assembles into an unusual head-to-head chain and a fishbone-like array by C–I⋯π and π⋯π interactions. Furthermore, it forms halogen-bonded cocrystal and liquid crystals with 4,4′-bipyridine or 4-alkoxystilbazole.

Synergistic effects of halogen bond and π–π interactions in thiophene-based building blocks

The use of a thiophene-based building block (Pyr-T) to achieve a supramolecular assembly driven by halogen bonding (XB) is described. X-ray crystallography, NMR, Raman spectroscopy, and computational chemistry afford evidence of strong XB and π–π stacking.