Synthesis and crystal structure of 2-D silver coordination polymers containing aminopyrazine

Abstract

Two supramolecules of Ag(I), [Ag(NO₃)(APZ)] _n (1) and {[Ag(APZ)₂][CF₃COO] · H₂O} _n (2) (APZ = aminopyrazine) have been prepared by self-assembly of Ag(I) salts with APZ in MeOH/H₂O. EA, IR, and TGA spectra have been recorded and the complexes have been structurally characterized by X-ray crystallography, confirming that 1 and 2 are 2-D pleated rectangular grid coordination polymers. The in 1 is coordinated to Ag⁺, bidentate, and μ²,η¹-, while CF₃COO⁻ in 2 is not coordinated. Ag ··· O interactions, hydrogen bonds, and π ··· π stacking interactions support the supramolecular structures.

Keywords:

• Silver
• Coordination polymer
• Aminopyrazine

Acknowledgments

We are grateful to the Nanya Institute of Technology and the National Science Council of the Republic of China for support.