Synthesis, Crystal Structure, and Antibacterial and Antioxidant Properties of a New Ag(I) Coordination Polymer Based on 3-Chloro-6-(1H-1,2,4-triazol-1-yl) Pyridazine

Abstract

A new Ag(I) complex [AgL₂(NO₃)] (1) (L = 3-chloro-6-(1H-1,2,4-triazol-1-yl) pyridazine) was synthesized and characterized by IR spectra and X-ray single-crystal diffraction. The structure reveals that each nitrate ion adopts not only bidentate chelating coordination, but also the bridging mode to connect surrounding Ag(I) atoms. Each ligand L binds three Ag(I) ions and each Ag(I) ion links three L to form a 1D chain structure. All 1D chains further construct a 3D supramolecular framework by hydrogen bonds (C-H…O) and π…π interactions (offset stacking) in the solid state. The antibacterial activity and antioxidant activity of L and 1 were also studied.

Keywords:

• Ag(I) coordination polymer
• antibacterial and antioxidant activities
• crystal structure

Acknowledgments

The authors are thankful for support of this study by the National Natural Science Foundation of China (No. 20871099) and Gansu provincial Natural Science Foundation of China (No. 0710RJZA113).