3d–4f Heterometallic Complexes for the Construction of POM-based Inorganic–Organic Hybrid Compounds: from Nanoclusters to One-Dimensional Ladder-Like Chains

Dongying Du; Junsheng Qin; Shunli Li; Yaqian Lan; Xinlong Wang; Zhongmin Su

doi:10.1071/CH10047

RESEARCH ARTICLE

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3d–4f Heterometallic Complexes for the Construction of POM-based Inorganic–Organic Hybrid Compounds: from Nanoclusters to One-Dimensional Ladder-Like Chains

Dongying Du ^A , Junsheng Qin ^A , Shunli Li ^A ^B , Yaqian Lan ^A , Xinlong Wang ^A and Zhongmin Su ^A ^B

+ Author Affiliations

- Author Affiliations

^A Institute of Functional Material Chemistry, Key Lab of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China.

^B Corresponding author. Email: zmsu@nenu.edu.cn

Australian Journal of Chemistry 63(9) 1389-1395 https://doi.org/10.1071/CH10047
Submitted: 25 January 2010 Accepted: 21 April 2010 Published: 9 September 2010

Abstract

Three polyoxometalate-based inorganic–organic hybrid compounds, namely nanoclusters [Cu(en)₂H₂O]₃[(α-SiW₁₁O₃₉)Nd(H₂O)(η²,μ-1,1)-CH₃COO]·3.5H₂O (1) and [Cu(en)₂H₂O]₃[(α-SiW₁₁O₃₉)Sm(H₂O)(η²,μ-1,1)-CH₃COO]·3H₂O (2), and 1D H₂[Cu(en)₂H₂O]₈[Cu(en)₂]₃[{(α-SiW₁₁O₃₉)Ce(H₂O)(η²,μ-1,1)-CH₃COO}₄]·22H₂O (3) (en = 1,2-ethylenediamine) have been isolated. 1 and 2 are isomorphic and consist of [(α-SiW₁₁O₃₉)Ln(H₂O)(η²,μ-1,1)-CH₃COO]^6– polyanions modified by [Cu(en)₂H₂O]²⁺ fragments. In 3, [Cu(en)₂H₂O]²⁺ are grafted on [(α-SiW₁₁O₃₉)Ce(H₂O)(η²,μ-1,1)-CH₃COO]^6– polyanions and further connected by [Cu(en)₂]²⁺ groups, representing the first example in polyoxometalate chemistry of a 1D ladder-like polyanion chain consisting of monovacant Keggin-type polyanions, lanthanide complexes and transition metal complexes. In these compounds, copper complexes coordinate to not only terminal O atoms but also bridging O atoms of the polyanions. Magnetic studies of 1 and 3 reveal weak antiferromagnetic interactions exist in them.

Acknowledgements

The authors gratefully acknowledge financial support from the Program for Changjiang Scholars and Innovative Research Team in University, the National Natural Science Foundation of China (grant nos 20573016, 20901014, and 20703008), the Science Foundation for the Young of Jilin Scientific Development Project (grant nos 20090125 and 20090129), the Science Foundation for Young Teachers of Northeast Normal University (NENU) (grant no. 20090407), the Training Fund of NENU’s Scientific Innovation Project (NENU-STC08019), Ph.D. Station Foundation of Ministry of Education for New Teachers (grant no. 20090043120004), the Postdoctoral Foundation of Northeast Normal University and the Postdoctoral Foundation of China (grant no. 20090461029).

References

3d–4f Heterometallic Complexes for the Construction of POM-based Inorganic–Organic Hybrid Compounds: from Nanoclusters to One-Dimensional Ladder-Like Chains

Abstract

Acknowledgements

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