Metallophthalocyanines Bearing Polymerizable {[5-({(1E)-[4-(Diethylamino)phenyl]methylene}amino)-1-naphthy1]oxy} Groups as Electrochemical Pesticide Sensor,Electroanalysis

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Metallophthalocyanines Bearing Polymerizable {[5-({(1E)-[4-(Diethylamino)phenyl]methylene}amino)-1-naphthy1]oxy} Groups as Electrochemical Pesticide Sensor
Electroanalysis ( IF 2.7 ) Pub Date : 2017-11-02 , DOI: 10.1002/elan.201700366
Duygu Akyüz ₁ , Turgut Keleş ₂ , Zekeriya Biyiklioglu ₂ , Atıf Koca ₁

Affiliation

The synthesis and characterization of novel metallophthalocyanines (MPcs(ea)) carrying {[5-({(1E)-[4-(diethylamino)phenyl]methylene}amino)-1-naphthyl]oxy} groups on four peripheral positions have been reported. These complexes have been characterized by a combination of FT-IR, 1H and 13C NMR, mass and UV-Vis spectroscopy techniques. Redox active metal centers in the core of the Pc rings (Co (II) [CoPc(ea)], Mn(III) [Cl–MnPc(ea)], and Ti(IV)O [TiOPc(ea)]) and electropolymerizable substituents on the peripheral positions of Pc rings were used to increase redox activity and electrochemically polymerization ability of the complexes. The redox properties of MPcs(ea) were determined with voltammetry and in situ spectroelectrochemistry techniques. Then, GCE/MPc(ea) electrodes were constructed with the electropolymerization of MPcs and these electrodes were tested as the pesticide sensors. Sensing studies indicated that type of the metal center of the complexes effectively influenced the sensing activities. While all complexes showed interaction abilities for the fenitrothion, parathion and eserine, GCE/CoPc(ea) electrode detected the parathion selectively with LOD value of 4.52×10−7 mol dm−3 among studied three pesticides. Moreover, GCE/MnClPc(ea) electrode selectively detected eserine with LOD value of 6.43×10−7 mol dm−3 and GCE/TiOPc(ea) electrode detected parathion with LOD value of 8.64×10−7 mol dm−3. All GCE/MPcs(ea) electrodes showed high sensitivity and wide linear ranges for those pesticides. These sensing data illustrated the usability of these modified electrodes in real samples such as seawater with good selectivity and sensitivity.

中文翻译：

带有可聚合 {[5-({(1E)-[4-(Diethylamino)phenyl]methylene}amino)-1-naphthy1]oxy} 基团的金属酞菁作为电化学农药传感器

在四个外围位置带有 {[5-({(1E)-[4-(二乙氨基)苯基]亚甲基}氨基)-1-萘基]氧基}基团的新型金属酞菁 (MPcs(ea)) 的合成和表征报道。这些配合物已通过 FT-IR、1H 和 13C NMR、质谱和 UV-Vis 光谱技术的组合进行表征。Pc 环核心中的氧化还原活性金属中心（Co (II) [CoPc(ea)]、Mn(III) [Cl–MnPc(ea)] 和 Ti(IV)O [TiOPc(ea)]）和Pc 环外围位置上的可电聚合取代基用于提高复合物的氧化还原活性和电化学聚合能力。用伏安法和原位光谱电化学技术测定了 MPcs(ea) 的氧化还原特性。然后，GCE/MPc(ea) 电极是用 MPcs 的电聚合构建的，这些电极作为农药传感器进行了测试。传感研究表明配合物的金属中心类型有效地影响了传感活动。虽然所有配合物都显示出对杀螟硫磷、对硫磷和丝氨酸的相互作用能力，但 GCE/CoPc(ea) 电极在研究的三种农药中选择性地检测到对硫磷，LOD 值为 4.52×10-7 mol dm-3。此外，GCE/MnClPc(ea) 电极选择性检测到丝氨酸，LOD 值为 6.43×10-7 mol dm-3，GCE/TiOPc(ea) 电极检测到 LOD 值为 8.64×10-7 mol dm-3 的对硫磷。所有 GCE/MPcs(ea) 电极都显示出对这些农药的高灵敏度和宽线性范围。

更新日期：2017-11-02

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