Journal
CRYSTAL GROWTH & DESIGN
Volume 18, Issue 11, Pages 6742-6747Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.cgd.8b01021
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Funding
- National Natural Science Foundation of China [21675013]
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The pure organic hexagonal channel host is first assembled by 1,4-diiodotetrafluorobenzene and 4-phenylpyridine N-oxide under mediation of linear guest molecules using robust C-I center dot center dot center dot O--N+ halogen bond, pi-hole center dot center dot center dot pi bond, and weak hydrogen bonds. The guest molecules dwell in the host by parallel offset pi-pi stacking and interact with host by weak C-H center dot center dot center dot pi hydrogen bonds to stabilize the host guest structure. The as prepared host guest cocrystals exhibit different photoluminescence colors at room temperature, bright cyan, sapphire blue, and pink, respectively, originating mainly from the guest molecules. It is expected that the synergistic host-guest assembly and its photoluminescence behavior should be significant in fabricating smart photomolecular devices in future.
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