Journal
INORGANIC CHEMISTRY COMMUNICATIONS
Volume 14, Issue 11, Pages 1698-1702Publisher
ELSEVIER
DOI: 10.1016/j.inoche.2011.06.035
Keywords
Polyoxometalate; Lanthanide-organic chain; Betaine; Electrocatalysis
Categories
Funding
- National Natural Science Foundation of China [91027002]
- National Creative Experimental Project of Undergraduate Students
- Testing Foundation of Northeast Normal University
- Program for Changjiang Scholars and Innovative Research Team in University
- Fundamental Research Funds for the Central Universities
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The reaction between a double-betaine-containing ligand and DyH[Pmo(11)VO(40)]center dot nH(2)O led to a new polyoxometalate-based lanthanide-organic hybrid compound with the molecular formula [Dy(HL)(L)(1.5) (H2O)(3)][PMo11VO40]center dot 8H(2)O (1) (L=1,4-bis(pyridinil-4-carboxylato)-1,4-dimethylbenzene). Compound 1 was characterized by elemental analyses, TG, IR, XPS and the single-crystal X-ray diffraction. Compound 1 possesses a cationic 1D polymeric chain [Dy(HL)(L)(1.5)(H2O)(3)](n)(4n+) with cyclic-, chain- and semi-cyclic-like fragments, corresponding to three different configurations of the double-betaine-containing ligand. These 1D chains are connected together by the H-bonds and pi-pi interactions to form a 3D supramolecular framework, encapsulating the vanadium-substituted Keggin-type polyoxoanions [PMo11VO40](4-) and the solvent molecules. This composite compound displays electrocatalytic activities towards the reduction of nitrite and the luminescent property. (C) 2011 Elsevier B.V. All rights reserved.
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