A novel fused bi-macrocyclic host for sensitive detection of Cr2O72-based on enrichment effect

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外文摘要：Improving the highly selective and sensitive binding of chemosensor to target guest is always very chal-lenging.In order to solve this issue,herein,the enrichment effect was introduced into the design of chemosensor molecule.A novel bi-fused-macrocyclic host molecule BPN1 was synthesized by bridging a pillar[5]arene and a naphthalene diimide(NDI)group through hydrogen-bond-rich chain.In the BPN1,the naphthalimide side ring is outside the cavity of the pillar[5]arene.In addition,Cr(Ⅵ)greatly threat human health and the environment due to its severe toxicity,and it is very important to develop effec-tive chemosensor for sensitive and selective detection of Cr2O72-or its ion pairs.In this paper,the novel bi-fused-macrocyclic host molecule BPN1 can recognize Cr2O72-with high selectivity and sensitivity.The mechanism of BPN1 recognition of Cr2O72-was studied through experiments and density functional the-ory(DFT),the results show that BPN1 could supply enrichment effect to bind Cr2O72-through multiple weak interactions such as hydrogen bonds and anion-π,and achieve highly sensitive and selective detec-tion of Cr2O72-.It is a significant and feasible strategy for improve high selectivity and sensitivity of host to specific objects by using the enrichment effect of fused bi-macrocyclic.

外文关键词：

Pillar[5]areneBi-macrocyclicDetection of Cr2O72-DFTThe enrichment effect

作者：

Ting-Ting Huang、Jin-Fa Chen、Juan Liu、Tai-Bao Wei、Hong Yao、Bingbing Shi、Qi Lin

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作者单位：

Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education,Key Laboratory of Eco-environmental Polymer Materials of Gansu Province,College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou 730070,China

Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission,Gansu Provincial Biomass Function Composites Engineering Research Center,College of Chemical Engineering,Northwest Minzu University(Northwest University for Nationalities),Lanzhou 730000,China

基金：

National Natural Science Foundation of China(NSFC)National Natural Science Foundation of China(NSFC)National Natural Science Foundation of China(NSFC)National Natural Science Foundation of China(NSFC)topnotch talent project in Gansu province,the Key R&D Program of Gansu ProvinceGansu Province College Industry Support Plan ProjectNatural Science Foundation of Gansu ProvinceNatural Science Foundation of Gansu Provincestar of innovation

项目编号：

2206503122061039220012142216502721YF5GA0662022CYZC-182020-0405-JCC-63020JR10RA0882023CXZX-244

出版年：

2024

DOI：

10.1016/j.cclet.2023.109281

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(7)