Novel 1-D double-chain organic–inorganic hybrid polyoxotungstates constructed from dimeric copper–lanthanide heterometallic silicotungstate units

Junwei Zhao; Jie Luo; Lijuan Chen; Jing Yuan; Huiying Li; Pengtao Ma; Jingping Wang; Jingyang Niu

doi:10.1039/C2CE26007G

Novel 1-D double-chain organic–inorganic hybrid polyoxotungstates constructed from dimeric copper–lanthanide heterometallic silicotungstate units†

Junwei Zhao,*^ab Jie Luo,^ac Lijuan Chen,*^ac Jing Yuan,^a Huiying Li,^a Pengtao Ma,^a Jingping Wang^a and Jingyang Niu*^a

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* Corresponding authors

^a Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
E-mail: zhaojunwei@henu.edu.cn, jyniu@henu.edu.cn
Fax: (+86) 378 3886876

^b State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China

^c Basic Experiment Teaching Center, Henan University, Kaifeng, Henan 475004, P. R. China

Abstract

A series of novel 1-D double-chain organic–inorganic hybrid polyoxotungstates [Cu(dap)₂(H₂O)]₂{Cu(dap)₂[α-H₂SiW₁₁O₃₉Ln(H₂O)₃]₂}·xH₂O [Ln = Ce^III, x = 9 (1); Ln = Pr^III, x = 10 (2), Ln = Nd^III, x = 10 (3), Ln = Sm^III, x = 10 (4), Ln = Eu^III, x = 10 (5), Ln = Gd^III, x = 9 (6), Ln = Tb^III, x = 8 (7), Ln = Dy^III, x = 8 (8), Ln = Er^III, x = 9 (9)] (dap = 1,2-diaminopropane) have been hydrothermally prepared and structurally characterized by elemental analyses, inductively coupled plasma atomic emission spectrometry, IR spectra, UV-Vis spectra, thermogravimetric analyses and single-crystal X-ray diffraction. Compounds 1–9 are isomorphic and display the novel 1-D double-chain built by dimeric copper–lanthanide heterometallic silicotungstate units by means of the bridging role of the lanthanide cations, to our knowledge, which represent the first organic–inorganic hybrid 1-D double-chain copper–lanthanide heterometallic polyoxometalates. The variable-temperature magnetic susceptibilities of 2, 3, 6 and 8 have been investigated. The solid-state photoluminescence properties of 4, 5, 7 and 8 have been measured at room temperature.

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DOI: https://doi.org/10.1039/C2CE26007G
Article type: Paper
Submitted: 23 Jun 2012
Accepted: 22 Aug 2012
First published: 24 Aug 2012

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CrystEngComm, 2012,14, 7981-7993

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Novel 1-D double-chain organic–inorganic hybrid polyoxotungstates constructed from dimeric copper–lanthanide heterometallic silicotungstate units

J. Zhao, J. Luo, L. Chen, J. Yuan, H. Li, P. Ma, J. Wang and J. Niu, CrystEngComm, 2012, 14, 7981 DOI: 10.1039/C2CE26007G

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CrystEngComm

Novel 1-D double-chain organic–inorganic hybrid polyoxotungstates constructed from dimeric copper–lanthanide heterometallic silicotungstate units†

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Novel 1-D double-chain organic–inorganic hybrid polyoxotungstates constructed from dimeric copper–lanthanide heterometallic silicotungstate units

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