Abstract
Reactions of monovacant Dawson-/Keggin-polyoxoanions, formed in situ from trivacant Dawson-/Keggin-precursors, with copper complexes under hydrothermal conditions lead to three inorganic–organic hybrid polyoxotungstates [Cu(en)2(H2O)]2{[Cu(en)2(H2O)]2[Cu(en)2]4[Cu(en)2][α2-P2W17CuO61]2}·(OH)2·12H2O (1), [Cu(dap)2][Cu(dap)2(H2O)]2[α-PW11CuO39]·(OH)·2H2O (2) and (H2en)2[α-PW11CuO39][Cu(en)2(H2O)2]0.5·1.5H2O (3) (en = ethylenediamine and dap = 1,2-diaminopropane). X-ray structural analyses demonstrate that 1 exhibits the first zigzag 1-D chain arrangement constructed from mono-copperII-substituted Dawson dimeric polyoxoanions [α2-P2W17CuO61] 16−2 linked by [Cu(en)2]2+ bridges, whereas 2 and 3 display 1-D linear chain architectures made up of mono-copperII-substituted Keggin polyoxoanions [α-PCuW11O39]5− linked together via corner-sharing MO6 octahedra (M = Cu or W).
Graphical Abstract
Reactions of monovacant Dawson or Keggin polyoxoanions with copper complexes under hydrothermal conditions lead to three novel 1-D chain-like inorganic- organic hybrid polyoxotungstates.
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Acknowledgments
This work was supported by the National Natural Science Fund for Distinguished Young Scholars of China (no. 20725101), the 973 Program (no. 2006CB932904), the NNSF of China (nos. 50872133 and 20821061), the NSF of Fujian Province (no. E0510030), the Knowledge Innovation Program of the Chinese Academy of Sciences (No. KJCX2.YW.H01).
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Li, B., Zhao, D. & Yang, GY. Hydrothermal Synthesis and Structural Characterization of Three One-Dimensional Heteropolytungstates Formed by Mono-CopperII-Substituted Dawson or Keggin Cluster Units. J Clust Sci 20, 629–639 (2009). https://doi.org/10.1007/s10876-009-0264-3
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DOI: https://doi.org/10.1007/s10876-009-0264-3