Article

Two Lanthanide-Organic Frameworks Derived from 1H-Benzimidazole-5-Carboxylic Acid and Oxalate Mixed Ligands: Synthesis, Structure and Luminescence Property†

  1. Li Ma1,2,
  2. Guo Peng1,2,
  3. Jin-Biao Cai1,2,
  4. Dr. Hong Deng1,2,*

Article first published online: 16 AUG 2011

DOI: 10.1002/zaac.201100168

Issue

Zeitschrift für anorganische und allgemeine Chemie

Zeitschrift für anorganische und allgemeine Chemie

Volume 637, Issue 14-15, pages 2278–2281, December 2011

Additional Information

How to Cite

Ma, L., Peng, G., Cai, J.-B. and Deng, H. (2011), Two Lanthanide-Organic Frameworks Derived from 1H-Benzimidazole-5-Carboxylic Acid and Oxalate Mixed Ligands: Synthesis, Structure and Luminescence Property. Z. anorg. allg. Chem., 637: 2278–2281. doi: 10.1002/zaac.201100168

Author Information

  1. 1

    School of Chemistry and Environment, South China Normal University, Guangzhou 510006, P. R. China

  2. 2

    Key Lab of Electrochemical Technology on Energy Storage and Power Generation in Guangdong Universities, Guangzhou 510631, P. R. China

*School of Chemistry and Environment, South China Normal University, Guangzhou 510006, P. R. China

  1. †

    Supporting Information for this article is available on the WWW under http://dx.doi.org/10.1002/zaac.201100168 or from the author.

Publication History

  1. Issue published online: 27 DEC 2011
  2. Article first published online: 16 AUG 2011
  3. Manuscript Accepted: 16 AUG 2011
  4. Manuscript Received: 11 APR 2011

Funded by

  • National Natural Science Foundation of China. Grant Number: 20871048

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Keywords:

  • 1H-benzimidazole-5-carboxylic acid;
  • Luminescence;
  • Lanthanide-organic frameworks;
  • Mixed ligands

Abstract

Two novel lanthanide metal coordination frameworks were synthesized by reaction of 1H-benzimidazole-5-carboxylic acid (H2bic) in the presence of the coligand oxalate with lanthanide ions under hydrothermal conditions, namely, [Eu(H2bic)(C2O4)1.5]·H2O (1) and [La(H2bic)(C2O4)1.5]·H2O (2). The two compounds 1 and 2 are isomorphous and have a 2D layer architecture built up by oxalate ligands interconnecting Eu2O2 clusters, which are further linked by hydrogen bonding to form a 3D supramolecular framework. The luminescence emission spectrum of compound 1 is also discussed. Both compounds were further investigated by infrared spectroscopy (IR), thermogravimetric analysis (TGA), elemental analyses (EA), and powder X-ray diffraction (PXRD).

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