A supramolecular organic framework with ant topology featuring interdigitation and interpenetration
H4BOPTC reacts with IMI to yield a supramolecular organic framework, formulated as [IMIH+]2√[H2BOPTC2 − ]√0.5H2O (1) (IMI = imidazole, H4BOPTC = benzophenone-3,3′,4,4′-tetracarboxylic acid). Single-crystal X-ray diffraction analysis reveals that 1 shows a novel architecture with two-level hierarchical entanglement. H2BOPTC2 − connects to IMIH+ through hydrogen bonds, providing 1D ribbon. The basic ribbons are entangled into a 3D net with ant topology. Then the ant nets further interpenetrate to give the final entangled framework. The thermal stability, optical band gap energy and photoluminescent property of 1 have also been investigated.
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