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Hydrothermal syntheses and structural characterizations of three polyoxomolybdates frameworks linked by M(HL)2 units (M = Co, Ni, Zn; L = 3-(2-pyridyl)pyrazole)

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Abstract

Three polyoxomolybdate compounds, namely {[MII(HL)2]2(Mo8O26)} n (M = Co (1), Ni (2), Zn (3)) (HL, 3-(2-pyridyl)pyrazole), were designed and synthesized under the hydrothermal conditions and characterized by elemental analysis, IR spectroscopy, and TGA. Single-crystal X-ray diffraction analysis results reveal that compounds 13 own the isostructural chain structure consisting of the β-[Mo8O26]4− anions, which are linked by M(HL) 2+2 units via the terminal oxygen atoms. TGA curves show that the organic ligands separate from the related compounds above ca. 673 K.

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Zhang, X., Wu, X., Sun, D. et al. Hydrothermal syntheses and structural characterizations of three polyoxomolybdates frameworks linked by M(HL)2 units (M = Co, Ni, Zn; L = 3-(2-pyridyl)pyrazole). Sci. China Chem. 53, 2285–2290 (2010). https://doi.org/10.1007/s11426-010-4018-8

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