A new manganese coordination polymer containing 1,2,4-benzenetricarboxylic acid

Huey Ting Chung, Hui-Lien Tsai, En Che Yang, Po Hsiu Chien, Chia Chien Peng, Yun Chieh Huang, Yen Hsiang Liu

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16 Citations (Scopus)


The reaction of an unsymmetrical ligand, namely 1, 2, 4- benzenetricarboxylic acid (H3btc), under pH-controlled hydrothermal conditions with a manganese salt leads to the threedimensional coordination polymer {Mn(H2O)[C6H3(CO2) 2(CO2H)]-(H2O)}n (FJU-2). Potassium hydroxide is used as a control agent to modulate the degree of deprotonation of the unsymmetrical H3btc ligand during the hydrothermal reaction, which is essential for the synthesis of the resulting product. The product was characterised by elemental, singlecrystal and powder X-ray analyses. The structure of FJU-2 consists of carboxylate- and water-bridged manganese cluster chains which are further cross-connected by the phenyl spacer into a three-dimensional neutral framework. Guest water molecules reside in an elliptically shaped, one-dimensional channel. There are strong hydrogen-bonding interactions between the guest water molecules and host framework that prevent the release of the guest water molecules at lower temperatures, as indicated by the thermogravimetric analysis. The magnetic study shows an antiferromagnetic coupling for FJU-2.

Original languageEnglish
Pages (from-to)3661-3666
Number of pages6
JournalEuropean Journal of Inorganic Chemistry
Issue number24
Publication statusPublished - 2009 Aug 1

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

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