Two Ag(I) Complexes Constructed From the Flexible Tripodal Pyridyl-Benzimidazole-Based Connector

Abstract

Two new complexes {Ag₂(TPBT)(NO₃)₂}_n (1) and Ag₂(TPBT)₄ (ClO₄)₂ (2) were constructed by the reaction of tripodal connector 1,3,5-[(2-pyridyl)-1H-benzoimidazol- 1-methyl)-2,4,6-trimethylbenzene (TPBT) and corresponding silver salts under solvothermal conditions. The synergistic effect of the flexible tripodal ligand and anions has led to different complexes 1 and 2. Complex 1 is a 2D layer with the binuclear units with the Ag···Ag distance of 2.9054 Å, whereas 2 is a binuclear motif with Ag···Ag separation of 10.526 Å. Both 1 and 2 are further extended into 3D supramolecular architectures by hydrogen bonds and π···π interactions, which exhibit weak luminescence emission in the solid state at room temperature.

Supplementary material is available for this article. Go to the publisher's online edition of Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry to view the supplemental file.

Keywords:

• 2-(2-pyridyl)-benzimidazole
• crystal structure
• luminescence property
• tripodal ligands

Acknowledgments

The authors gratefully acknowledge the financial support by the He’nan Key Science and Technology Research (Nos. 112102310084 and 122102310061).