首页|Dynamically switchable porphyrin-based molecular tweezer for on-off fullerene recognition

Dynamically switchable porphyrin-based molecular tweezer for on-off fullerene recognition

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Herein,a novel molecular tweezer based on 2,2'-bipyridine-bridged porphyrin subunits was constructed for efficient fullerenes recognition.The syn conformation of the molecule,which was obtained by Zn(Ⅱ)coordination,gives rise to a proper cavity to interact with fullerene guests to form a stable 1:1 complex in toluene solution.It exhibits distinct binding selectivity towards C60 over C70.Moreover,the fullerene recognition capacity can be adequately suppressed by importing H2PO4-to competitively capture Zn(Ⅱ)along with syn-anti conformational conversion.Subsequently,the molecular tweezer regenerated to bind the fullerene by introducing the Ca2+into the system.Significantly,the association-disassociation process can be switched reversibly and repeatedly.

Molecular tweezerFullerene recognitionSupramolecular chemistryConformation conversionCoordination

Zhimin Sun、Xin-Hui Guo、Yue Zhao、Qing-Yu Meng、Li-Juan Xing、He-Lue Sun

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College of Chemistry and Materials Science,Hebei Key Laboratory of Organic Functional Molecules,Hebei Normal University,Shijiazhuang 050024,China

National Natural Science Foundation of ChinaNatural Science Foundation of Hebei ProvinceNatural Science Foundation of Hebei ProvinceChina Postdoctoral Science Foundation

21801060B2019205172226Z1501G2020TQ0087

2024

10.1016/j.cclet.2023.109162

中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
年,卷(期)：2024.35(6)
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