Silver(I) coordination polymer based on anthraquinone-2,6-disulfonate: synthesis, crystal structure, and luminescent properties

Abstract

Self-assembly of anthraquinone-2,6-disulfonic acid disodium salt (Na₂a-2,6-dad) and AgNO₃ under hydrothermal conditions resulted in an unprecedented coordination complex, which was characterized by single-crystal X-ray analyses, elemental analyses, IR spectra, TG analyses, and fluorescence investigations. Complex 1 is a 3-D coordination polymer, where a-2,6-dad and Ag–Ag bonds play vital roles. Two sulfonate groups of a-2,6-dad are μ ₄- and μ ₅-bridges. The unique packing environments of the Ag ions and Ag–Ag bonds lead to 1-D chains consisting of eight- and four-membered rings for Ag1 and Ag1, Ag2 and Ag2 connection, respectively.

Keywords:

• Silver
• Sulfonate
• Polymers
• Fluorescence

Acknowledgments

This project was supported by the Natural Scientific Research Foundation of Shaanxi Provincial Education Office of China (No. 2010JK918).