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Original Articles

Two 3-D metal-organic frameworks constructed by 2-methyl or 2-ethyl imidazole dicarboxylates

, , , , &
Pages 2554-2564 | Received 01 Apr 2011, Accepted 06 Jun 2011, Published online: 26 Jul 2011
 

Abstract

Two polymeric frameworks, [Zn5(MIDC)2(HMIDC)2(phen)5] n (1) (H3MIDC = 2-methyl-1H-imidazole-4,5-dicarboxylic acid, phen = 1,10-phenanthroline) and {[Ca2(HEIDC)2(H2O)] · H2O} n (2) (H3EIDC = 2-ethyl-1H-imidazole-4,5-dicarboxylic acid), have been solvothermally synthesized and structurally characterized by single-crystal X-ray diffraction. Compound 1 exhibits a 3-D structure constructed from 2-D layer motifs joined by µ 2-HMIDC2− or µ 3-MIDC3− ligands. Compound 2 also presents a 3-D framework, generated from 1-D chains linked by HEIDC2− ligands by two different µ5-modes. The thermal and solid-state photoluminescence properties of both the complexes have been determined.

Acknowledgments

We gratefully acknowledge the financial support by the National Natural Science Foundation of China (21071127, 20501017 and J0830412), and Program for New Century Excellent Talents in University and the Natural Science Foundation of Henan Education Department (2009A150028 and 2011A150029).

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