A novel hexanuclear Zn6 metallacycle as a luminescent sensor for the Fe3+ ion and CCl4 molecule

作者：Liu, Xiaoli; Gao, Peng; Hu, Ming^*

来源：Polyhedron, 2018, 144: 119-124.

DOI：10.1016/j.poly.2018.01.018

• Zn-hexanuclear
• Metallamacrocycle
• Luminescence
• Sensor
• Honeycomb structure

A novel Zn-6 metallamacrocycle based on a multidentate terpyridyl carboxylic acid ligand, namely [ZnL(HCOO)](6) (1), (HL = 4'-(4-carboxyphenyI)-2,2':6',2 ''-terpyridine), has been synthesized by the solvothermal method. Compound 1 was structurally characterized by elemental analysis, FT-IR, powder X-ray diffraction, thermogravimetric analysis and single-crystal X-ray diffraction. Compound 1 displays a hexanuclear Zn metallacycle structure, which extends into a honeycomb structure via pi-pi interactions. Compound 1 exhibits high selective sensing for the Fe3+ ion with great quenching efficiency and a low sensitive detection limit of 5.36 x 10(-8) M. In addition, compound 1 is also a selective sensing material for the CCl4 molecule with a detection limit of 8.87 x 10(-5) M. Furthermore, the luminescent sensing mechanisms for the Fe3+ ion and CCl4 molecule have been explored.

• 出版日期2018-4-1
• 单位内蒙古大学