New polycatenated coordination polymers for the selective detection of folic acid
New polycatenated coordination polymers for the selective detection of folic acid
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DOI：
10.1016/j.matchemphys.2022.126536
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发表时间：
2022-08
影响因子：
4.6
通讯作者：
Shu-Li Chen;Yan Mi;Ling Zhang;Qingquan Lu;Feilong Hu;D. Young
中科院分区：
文献类型：
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作者：
Shu-Li Chen;Yan Mi;Ling Zhang;Qingquan Lu;Feilong Hu;D. Young
在溶剂热条件下合成了四种荧光配位聚合物(CPS)[Zn2(CH3-bpeb)(Oba)2](CP1)、[Zn(2，5-二甲基bpeb)0.5(Oba)](CP2)、[Zn4(F-bpeb)2(Oba)4](H2O)(CP3)和[Zn2(NH2-bpeb)(Oba)2](CP4)(H2oba=4，4‘-氧基二苯甲酸；bpeb=1，4-双[(2-(吡啶-4-基)乙烯基苯)])。用“V”形的H_2oba配体构建环状基序，线性N-给体配体(CH3-bpeb、2，5-二甲基bpeb、F-bpeb、NH2-bpeb)作为互穿柱。CP1-CP4在固体中有很强的荧光，利用超声波可以得到稳定的微米级颗粒悬浮液。这些CP1-CP4悬浮液的荧光被叶酸(FA)以浓度依赖的方式猝灭。CP试纸可有效检测微摩尔浓度的FA。
Four fluorescent coordination polymers (CPs) [Zn2(CH3-bpeb) (oba)2] (CP1), [Zn(2,5-dimethyl-bpeb)0.5(oba)] (CP2), [Zn4(F-bpeb)2(oba)4] (H2O) (CP3) and [Zn2(NH2-bpeb) (oba)2] (CP4) (H2oba = 4,4′-oxydibenzoic acid; bpeb = 1,4-bis[(2-(pyridine-4-yl)vinyl)benzene]) were synthesized under solvothermal conditions. The “V” shaped H2oba ligand was used for constructing of a ring motif and the linear N-donor ligands (CH3-bpeb, 2,5-dimethyl-bpeb, F-bpeb, NH2-bpeb) served as interpenetrating columns. CP1-CP4fluoresced strongly in the solid state and stable suspensions of micron-level particles could be obtained by ultrasound. The fluorescences of these aqueous suspensions of CP1-CP4were quenched by folic acid (FA) in a concentration-dependent manner. CP test papers could effectively detect FA at micromolar concentrations.