A new 3D Cd(II) coordination polymer constructed by mixed-ligand strategy: synthesis, crystal structure and properties

Abstract

A new 3D Cd(II) coordination polymer, {[Cd₂(btc)(HL)(H₂O)]·3H₂O}_n (1) (H₂L= 3-(1H-pyrazol-4-yl)-5-(pyridin-2-yl)-1, 2, 4-triazole; H₃btc = 1,3,5-benzenetricarboxylic acid), has been synthesized by hydrothermal reaction of Cd(NO₃)₂·4H₂O, H₂L and H₃btc. It has been structurally characterized by element analysis, IR. X-ray single-crystal analysis was carried out for 1, which crystallizes in the monoclinic system, space group P2₁/n. The single X-ray diffraction reveals that compound 1 exhibits 3D framework structure. The luminescence properties of H₂L and compound 1 were investigated at room temperature in the solid state. Furthermore, the thermal decomposition behavior of the compound is characterized by thermogravimetric analyses.

Keywords:

• Cadmium(II) coordination polymer
• crystal structure
• luminescence

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [grant no. 21671114] and the Science and Technology Project of Henan Province [grant no. 162106000025].