Pillar[5]arene derivatives containing two dinitrophenyl rings: syntheses, conformations and the tubular self assembly in the solid state

Pillar[5]arene derivatives with two dinitrophenyl rings were synthesized in 90% and 99% yields. The di(2,4-dinitro-5-fluoro-phenyl)-modified pillar[5]arene self assembled into columns in the solid state.