稠合镍（II）卟啉——通过超分子相互作用传感有毒阴离子和特定金属离子

Fused Nickel(II) Porphyrins-Sensing of Toxic Anions and Selected Metal Ions Through Supramolecular Interactions.

作者信息

Dar Tawseef Ahmad, Sankar Muniappan

机构信息

Department of Chemistry, Indian Institute of Technology, Roorkee, India.

出版信息

Front Chem. 2020 Nov 17;8:595177. doi: 10.3389/fchem.2020.595177. eCollection 2020.

Ni(II) porphyrins having fused -NH group were synthesized and characterized by various spectroscopic techniques. The fused porphyrins and were used to detect species of opposite polarity. was used to sense toxic anions . cyanide and fluoride ions whereas was used for detecting some selective metal ions including toxic mercury(II) ions. is having acidic -NH proton, which detects anions hydrogen bonding interactions followed by anion-induced deprotonation. On the other hand, senses the metal species weak charge transfer interactions from oxygen atom of the formyl group to the added metal ions. The limit of detection was calculated in case of as 2.13 and 3.15 ppm for cyanide and fluoride ions, respectively. Similarly, the detection limit was found to be 0.930, 2.231, and 0.718 ppm for Cu(II), Fe(III), and Hg(II) ions, respectively, for probe . The probes were recovered and reused for several cycles.

合成了具有稠合 -NH 基团的镍（II）卟啉，并通过各种光谱技术对其进行了表征。稠合卟啉和用于检测相反极性的物质。用于传感有毒阴离子，如氰化物和氟离子，而用于检测一些选择性金属离子，包括有毒的汞（II）离子。具有酸性 -NH 质子，通过氢键相互作用检测阴离子，随后发生阴离子诱导的去质子化。另一方面，通过从甲酰基的氧原子到添加的金属离子的弱电荷转移相互作用来传感金属物种。对于，计算出氰化物和氟离子的检测限分别为 2.13 和 3.15 ppm。同样，对于探针，发现 Cu（II）、Fe（III）和 Hg（II）离子的检测限分别为 0.930、2.231 和 0.718 ppm。这些探针可以回收并重复使用几个循环。