Synthesis and structural characterization of three supramolecular coordination polymers constructed from different metal ions and 2,2′-bipyridyl-3,3′-dicarboxylic acid

Abstract

Three new supramolecular coordination polymers based on 2,2′-bipyridyl-3,3′-dicarboxylic acid (H₂BPDC) and Mn(II), Fe(II), and Zn(II) were synthesized under hydrothermal conditions and characterized with single-crystallographic X-ray analysis and IR spectrum. Complex 1 exhibits a 1-D, chain-like structure, which is further connected to 2-D supramolecular layer structure through hydrogen bonds. Complex 2 exhibits a 3-D supramolecular structure constructed from 1-D chains through hydrogen bonds and π–π interactions. Like 1, 3 also shows 2-D supramolecular layer structure based on 1-D chains. Furthermore, the fluorescence of 3 was studied.

Keywords:

• Supramolecular coordination polymer
• Hydrogen bond
• π–π Interaction
• Fluorescence property

Acknowledgments

We gratefully acknowledge financial support from the China Postdoctoral Science Foundation (201104605, 20100470073), Fundamental Research Funds for the Central Universities (N09035002, N09035006), the National Natural Science Foundation of China (21103017), and the Postdoctoral Station Foundation of Northeast Normal University.

Notes

These authors contributed equally to this work.

These authors contributed equally to this work.

Additional information

Notes on contributors

Xiaoqing Cao

These authors contributed equally to this work.

Xu Zheng

These authors contributed equally to this work.