钴配位聚合物作为检测2,4,6-三硝基苯酚的高选择性和高灵敏度发光传感器

IF 0.7 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Molecular Crystals and Liquid Crystals Pub Date : 2023-10-04 DOI:10.1080/15421406.2023.2262857

Cuiping Wang, Wenwen Sheng, Chen Sun, Jie Lei, Jinsong Hu

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引用次数: 0

摘要

摘要本文以刚性共轭配体H4TPTC([1:1 ':4 '，1″-terphengl]-3,3″，5,5″-tetracarboxylic)、v形BPDPE(4,4 ' -双(吡啶基)二苯基醚)和Co(II)离子为溶剂热合成了新型三维网络配位聚合物{[Co(TPTC)(HBPDPE)2·2H2O]·3H2O}n[[[(1:1 ':4 '，1″-terphenyl))-3,3″，5,5″-四羧基钴(II)]二水合二吡啶](配合物1)。在配合物1中，相邻的Co(II)离子通过去质子化的TPTC4-连接，形成一维之字形链[Co(TPTC)(HBPDPE)2]n，然后相邻的[Co(TPTC)(HBPDPE)2]n通过各种h键相互连接，将结构从一维链扩展到三维网络。配合物1具有优良的荧光传感性能，对2,4,6-三硝基苯酚(TNP)的检测具有较高的灵敏度和选择性，猝灭常数Ksv高达2.08 × 105 M−1，相关系数R2为0.993。此外，还研究了Co-MOF作为硝基芳香炸药传感器的猝灭机理。以刚性共轭配体H4TPTC([1:1 ':4 '，1″-terphengl]-3,3″，5,5″-四羧基)、BPDPE(4,4 ' -双(吡啶基)二苯基)和Co(II)离子在溶剂热条件下合成了由一维之链和h键相互作用构建的新型三维配位聚合物{[Co(TPTC)(HBPDPE)2·2H2O]·3H2O}n(1)。配合物1对硝基芳香炸药(NAE) 2,4,6-三硝基苯酚(TNP)具有优异的荧光传感性能，其猝灭常数Ksv高达2.08 × 105 M−1，并对其猝灭机理进行了研究。关键词:配位聚合物晶体结构发光传感硝基芳香炸药作者贡献声明王翠萍:实验数据收集，撰写原稿文文:写作、评审、编辑。陈孙:收集实验数据。杰雷:收集实验数据。胡劲松:构思、写作审编、监督。数据可得性应要求提供数据。披露声明作者未报告潜在的利益冲突。项目资助:国家自然科学基金(No. 21671004)和安徽省高等学校自然科学研究重点项目(KJ2020A0958)， CCDC: 2165480

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A cobalt-coordination polymer as a highly selective and sensitive luminescent sensor for detecting 2,4,6-trinitrophenol

AbstractIn this paper, a new three-dimensional network coordination polymer {[Co(TPTC)(HBPDPE)2·2H2O]·3H2O}n [[[(1:1′:4′,1″-terphenyl)-3,3″,5,5″-tetracarboxylic cobalt (II)] dipyridine dihydrate] trihydrate] (Complex 1) was generated under solvothermal synthesis by rigid conjugated ligand H4TPTC ([1:1′:4′,1″-terphengl]-3,3″,5,5″-tetracarboxylic), V-shaped BPDPE (4,4′-bis (pyridyl) diphenyl ether) and Co(II) ion. In complex 1, the neighboring Co(II) ions are linked by deprotonated TPTC4- to achieve a 1D zigzag chain [Co(TPTC)(HBPDPE)2]n, then the adjacent [Co(TPTC)(HBPDPE)2]n chains linked each other by various H-bondings to extend the structure from 1D chain to 3D network. Complex 1 has excellent fluorescence sensing performance and exhibits high sensitivity and selectivity for detecting 2,4,6-trinitrophenol (TNP), the quenching constant Ksv is up to 2.08 × 105 M−1 along with the correlation coefficient R2 of 0.993. Furthermore, the quench mechanisms of this Co-MOF as a sensor to detect nitro- aromatic explosives were studied as well.A new three-dimensional coordination polymer {[Co(TPTC)(HBPDPE)2·2H2O]·3H2O}n (1), constructed by 1D zigzag chains and H-bondings interactions, was synthesized under solvothermal condition by a rigid conjugated ligand H4TPTC ([1:1′:4′,1″-terphengl]-3,3″,5,5″-tetracarboxylic), BPDPE (4,4′-bis (pyridyl) diphenyl) and Co(II) ion. Complex 1 has excellent fluorescence sensing performance for detecting Nitroaromatic explosive (NAE) 2,4,6-trinitrophenol (TNP), the quenching constant Ksv is up to 2.08 × 105 M−1, and the quenching mechanism was studied as well.Keywords: Coordination polymercrystal structureluminescent sensingnitroaromatic explosives Author contribution statementCuiping Wang: Collecting experimental data, Writing-original draft. WenWen Sheng: Writing-review & editing. Chen Sun: Collecting experimental data. Jie Lei: Collecting experimental data. JinSong Hu: Conceptualization, Writing-review & editing, Supervision.Data availabilityData will be made available on request.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work thanks to the fund support of the Natural Science Foundation of China (No. 21671004) and the Key Project of Natural Science Research for Colleges and Universities of Anhui Province (KJ2020A0958), CCDC: 2165480

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来源期刊

Molecular Crystals and Liquid Crystals 化学-晶体学

CiteScore

1.20

自引率

14.30%

发文量

248

审稿时长

2 months

期刊介绍： Established in 1966, Molecular Crystals and Liquid Crystals is a world-leading journal publishing original research papers in both an experimental and theoretical nature in three areas of specialization: liquid crystals, molecular crystals, and low-dimensional solids. These cover, but are not limited to: Liquid Crystals: -Electro- and magneto-optical phenomena; thermodynamics; phase transitions; structure; NMR and orientation-controlled spectroscopy; theory. Molecular Crystals: -Spectroscopy; energy and charge transfer; solid state reactions; photo and radiation effects Low-dimensional Solids: -Structure, electronic, magnetic, and optical properties; transport mechanisms The journal publishes research papers, review papers, and book reviews. In all three areas, experimental manuscripts describing both preparation and properties will be considered. Papers that describe determination of crystal structure alone are not encouraged unless some solid state forces (hydrogen bonding, charge transfer, etc.) are playing a significant role and/or some solid state properties of the materials are measured.