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| 1 | Bisindole [3]arenes—Indolyl Macrocyclic Arenes Having Significant Iodine Capture Capacity显示文摘Several novel macrocyclic arenes that are composed of six indole subunits,so-called bisindole[3]arenes(BID[3]s),were conveniently synthesized by the aluminum trichloride-catalyzed one-pot condensation of bisindole derivatives and paraformaldehyde in dichloromethane at room temperature.Their macrocyclic structures were demonstrated by X-ray single-crystal studies,and the presence of the macrocyclic cavities made it possible to accommodate specific small organic molecules.The BID[3]s have exceptionally high iodine adsorption ability due to the strong and synergic interaction of indole units toward iodine,exhibiting significant morphology changes upon adsorption and desorption of iodine.Iodine uptake capacity of up to 5.12 g·g^(−1) was found with MeBID[3],which is the highest value ever reported for macrocyclic arenes. | Xingke Yu Wanhua Wu Dayang Zhou Dan Su Zhihui Zhong Cheng Yang | 2022 | CCS Chemistry2022，4，5： | 0 |
| 2 | Temperature-driven braking of γ-cyclodextrin-curcubit[6]urilcowheeled [4]rotaxanes显示文摘Several cyclodextrin-cucurbit[6]uril-cowheeled [4]rotaxanes were synthesized through the cucurbit[6]uril-templated azide-alkyne 1,3-dipolar cycloaddition. The intramolecular interaction between the aromatic axle and the capping groups of cyclodextrin moieties was investigated by UV-vis, fluorescence,circular dichroism and NMR spectroscopic studies. The rotational kinetic of the wheel around the axle can be manipulated by adjusting the temperature. The capping group apparently slowed down the rotation of the wheel, playing a role of the brake, and lowering the temperature can stop the rotation of the wheel on the NMR timescale. | Ran Liu Yuxue Zhang Wanhua Wu Wenting Liang Qinfei Huang Xingke Yu Wei Xu Dayang Zhou Narayanan Selvapalam Cheng Yang | 2019 | Chinese Chemical Letters2019，30，3： | 0 |
| 3 | Chiroptical switching of molecular universal joint triggered by complexation/release of a cation: A stepwise synergistic complexation显示文摘Pillar[5]arene-based molecular universal joints(MUJs), bearing fused crown ether subring(MUJ1 and MUJ3) or a ring without ether oxygen atom(MUJ2), were synthesized and enantio–differentiated. Significant chiral inversion was observed for the crown ether-fused MUJs upon the addition of equivalent cations Na+, showing an anisotropy(g) factor of 0.014, while alkyl subring-fused MUJ2 showed no CD inversions. Unprecedentedly, sodium ion triggered rolling-in motion of the subring to the pillar[5]arene cavity was verified, and the synergistic noncovalent interaction of cation-π interactions and C–H···π interactions were responsible for the stabilized self-included conformers. The addition of Me OH or competitive hosts 15-crown-5 ether disassembled the complex of MUJ1 and Na+followed by a rolling-out of the subring, which made the sodium-ion triggered chiroptical switching reversible. | Fanrui Gao Xingke Yu Ling Liu Jinlei Chen Yongjun Lv Ting Zhao Jiecheng Ji Jiabin Yao Wanhua Wu Cheng Yang | 2023 | Chinese Chemical Letters2023，34，2： | 0 |
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