期刊
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
卷 25, 期 4, 页码 671-679出版社
SPRINGER
DOI: 10.1007/s10904-014-0140-y
关键词
Octamolybdate; Anderson-type polyoxometalate; Hybrid compound; Photocatalytic property
资金
- National Natural Science Foundation of China [21171025, 21471021]
- Program of New Century Excellent Talents in University [NCET-09-0853]
- Program of Innovative Research Team in University of Liaoning Province [LT2012020]
Three new polyoxometalates (POMs)-based hybrid compounds: H-6[Cu(C5H5N2)(2)(Mo8O27)(H2O)(2)]center dot 2(C5H6N2)center dot 2H(2)O (1), H-6[Co(C5H5N2)(2)(Mo8O27)(H2O)(2)]center dot 2(C5H6N2)center dot 2H(2)O (2) and H-4[(C5H6N2)(2){Ni(OH)(6)Mo6O18}]center dot 4H(2)O (3) (C5H6N2 = 3-aminopyridine), have been synthesized by self-assembly of (NH4)(6)Mo7O24 center dot 4H(2)O, C5H6N2 and different metal nitrates at different pH values. The single crystal X-ray diffraction, IR spectra, PXRD and thermogravimetric analyses have been used to characterize the title compounds. Compounds 1 and 2 are isostructural 3D metal-organic frameworks with a CdSO4-type topology, which are constructed from infinite Mo8O27 (6-) inorganic chains in uncommon ABAB linking mode. Compound 3 exhibits a 1D supramolecular chain derived from in situ formed Anderson-type [Ni(OH)(6)Mo6O18](4-) anions and 3-aminopyridine via hydrogen-bonding interactions. The structural diversities indicate that metal ions show great effect on the construction of different POMs and final architectures. The electrochemical behavior of compound 1, the photocatalytic activities of compounds 1-3 have been investigated in detail.
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