Abstract Through a simple and effective reaction of the cobalt (II) acetate tetrahydrate with a new ONO-tridentate Schiff base ligand (L1), which contains a thiophenyl group, a mono-anionic complex of formula: [{4-Th-C6H4-C(O)CH-C(CH3)=N-C6H4-2-O}2Co]-[Bu4N]+ (C1) was isolated. Spectroscopic tools (1H and 13C NMR, FT-IR) and the crystal structure revealed that C1 consists of a mononuclear six-coordinate anionic Co(III) center with a pseudo-octahedral geometry, and one tetrabutylammonium counterion to satisfy the negative charge of the coordination entity [CoIII(L1)2]-. Electropolymerization of C1 produces a conductive metallopolymer deposit on fluorine-doped tin oxide (FTO) electrodes, which acts as an efficient glucose sensor, showing a linear amperometric response for glucose within a concentration range of 1.97 × 10 −7 M to 3.88 × 10−6 M (R2 = 0.993), limit of detection (LOD) of 9.27 × 10−7 M and limit of quantification (LOQ) of 9.24 × 10−6 M. This electrochemical sensor, which exhibit excellent reproducibility in the manufacturing process, was stable in environmental conditions and showed good reproducibility of the measurements for two weeks. In addition, the metallopolymer deposit was characterized by electrochemical techniques (cyclic voltammetry) and SEM microscopy.

中文翻译：

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基于源自钴酸盐 (III) 席夫碱络合物的金属聚合物的新型高效高性能电化学葡萄糖传感器

摘要 通过四水合乙酸钴 (II) 与新的 ONO-三齿席夫碱配体 (L1) 进行简单有效的反应，该配体含有一个噻吩基，一种单阴离子配合物，式：[{4-Th-C6H4-分离出 C(O)CH-C(CH3)=N-C6H4-2-O}2Co]-[Bu4N]+ (C1)。光谱工具（1H 和 13C NMR、FT-IR）和晶体结构表明，C1 由一个单核六配位阴离子 Co(III) 中心组成，具有伪八面体几何形状，以及一个四丁基铵抗衡离子，以满足协调实体[CoIII(L1)2]-。C1 的电聚合在掺氟氧化锡 (FTO) 电极上产生导电金属聚合物沉积物，其充当有效的葡萄糖传感器，在 1.97 × 10 -7 M 至 3 的浓度范围内显示葡萄糖的线性电流响应。88 × 10-6 M (R2 = 0.993)，检测限 (LOD) 为 9.27 × 10-7 M，定量限 (LOQ) 为 9.24 × 10-6 M。制造过程中，在环境条件下是稳定的，并且在两周内显示出良好的测量重现性。此外，金属聚合物沉积物通过电化学技术（循环伏安法）和 SEM 显微镜进行表征。