Synthesis, Structure, and Photoluminescent Properties of Two New Microporous Eu(iii) Coordination Polymers with 2,4,6-Pyridinetricarboxylate

Cui-Jin Li; Wei Li; Zhao-Sha Meng; Meng-Xia Peng; Ming-Mei Yang; Ming-Liang Tong

doi:10.1071/CH09019

RESEARCH ARTICLE

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Synthesis, Structure, and Photoluminescent Properties of Two New Microporous Eu(iii) Coordination Polymers with 2,4,6-Pyridinetricarboxylate

Cui-Jin Li ^A , Wei Li ^B ^C , Zhao-Sha Meng ^A , Meng-Xia Peng ^A , Ming-Mei Yang ^A and Ming-Liang Tong ^A ^C

+ Author Affiliations

- Author Affiliations

^A Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Eduction/State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.

^B Department of Chemistry, Hanshan Normal University, Chaozhou 521041, China.

^C Corresponding authors. Email: liwei1789@tom.com; tongml@mail.sysu.edu.cn

Australian Journal of Chemistry 62(12) 1607-1613 https://doi.org/10.1071/CH09019
Submitted: 10 January 2009 Accepted: 16 June 2009 Published: 10 December 2009

Abstract

Two new three-dimensional (3D) microporous Eu(iii) coordination polymers, [Eu₅(pyta)₅(H₂O)₇]·3.5H₂O (1) and [Eu₂(ox)_1.5(pyta)(H₂O)₄]·4.5H₂O (2) (H₃pyta = 2,4,6-pyridinetricarboxylic acid, ox^2– = oxalate), have been synthesized under hydrothermal conditions. The oxalate ligand in 2, generated in situ from the cleavage and chemical rearrangement of the H₃pyta ligand, is incorporated to construct two kinds of 1D hydrophilic channels in 2. Both 1 and 2 show the characteristic photoluminescent properties of Eu(iii) compounds. Desolvated 2 shows interesting solvent-dependent photoluminescent properties.

Acknowledgements

We acknowledge financial support by the National Natural Science Foundation of China (grant nos 20525102 and 20821001), the Research Fund for the Doctoral Program of Higher Education (20060558081) and the ‘973 Project’ (2007CB815305) and partially by the Department of Education of Guangdong Province (no. z03065).

References

Synthesis, Structure, and Photoluminescent Properties of Two New Microporous Eu(iii) Coordination Polymers with 2,4,6-Pyridinetricarboxylate

Abstract

Acknowledgements

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