New Supramolecular Networks Based on Paratungstate with N-Donor Bridging Ligands

Chemical Research in Chinese Universities ›› 2012, Vol. 28 ›› Issue (3): 382-386.

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New Supramolecular Networks Based on Paratungstate with N-Donor Bridging Ligands

YAO Wei, WANG Xin, XIE Hong-wei, MA Rui-ying, YU Yang, LI Yang-guang

Key Laboratory of Polyoxometalate Science, Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China

Received:2011-05-26 Revised:2011-06-21 Online:2012-05-25 Published:2012-05-03
Contact: WANG Xin, LI Yang-guang E-mail:liyg658@nenu.edu.cn; wangx273@nenu.edu.cn
Supported by:
Supported by the National Natural Science Foundation of China(No.91027002) and the Fundamental Research Funds for the Central Universities, China(No.11CXPY002).

Abstract

Abstract: Three new supramolecular networks based on paratungstate and N-donor bridging ligands, [H₂bpmp]_2.5H[H₂W₁₂O₄₀]2H₂O(1), [H₂(bpp)]₂[H(py―CH₃)]_0.25[H(py―C₂H₅)]_0.25H_1.5[H₂W₁₂O₄₀]·4H₂O(2) and [H₂pip]₃[H₂W₁₂O₄₀](3)[bpmp=N,N'-bis(4-pyridylmethyl)piperazine; bpp=1,3-bis(4-pyridyl)propane; py=pyridine; pip=piperazine] were prepared by the hydrothermal synthesis and characterized by elemental analysis, infrared(IR), thermogravimetric(TG) analysis and single-crystal X-ray diffraction(XRD). All the compounds show high-dimen- sional supramolecular networks based on [H₂W₁₂O₄₀]^6- and the protonated N-donor ligands via the N―H···O―W hydrogen bonds and/or π···π stacking interactions. Their luminescent properties were investigated.

Key words: Polyoxometalate, Paratungstate, Supramolecular network, Luminescent property

YAO Wei, WANG Xin, XIE Hong-wei, MA Rui-ying, YU Yang, LI Yang-guang. New Supramolecular Networks Based on Paratungstate with N-Donor Bridging Ligands[J]. Chemical Research in Chinese Universities, 2012, 28(3): 382-386.

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New Supramolecular Networks Based on Paratungstate with N-Donor Bridging Ligands

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