Thumbnail
Access Restriction
Open

Author Zhou, Shi ♦ Liu, Bo ♦ Li, Xiao-Min ♦ Shi, Tian ♦ Chen, Ya-Guang
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ CHAINS ♦ HYBRIDIZATION ♦ HYDROTHERMAL SYNTHESIS ♦ INFRARED SPECTRA ♦ IRRADIATION ♦ LIGANDS ♦ METHYLENE BLUE ♦ PHOTOCATALYSIS ♦ PHOTOLUMINESCENCE ♦ POWDERS ♦ SURFACE PROPERTIES ♦ THERMAL GRAVIMETRIC ANALYSIS ♦ X-RAY DIFFRACTION ♦ X-RAY PHOTOELECTRON SPECTROSCOPY
Abstract Two isostructural polyoxometalate-based inorganic–organic hybrids with 1D helical chain, [CuH{sub 3}L{sub 2}(GeMo{sub 12}O{sub 40})]·2H{sub 2}O (1) and [CuH{sub 3}L{sub 2}(SiMo{sub 12}O{sub 40})]·2H{sub 2}O (2), where L=2,4,5-tri(4-pyridyl)-imidazole have been synthesized under hydrothermal conditions. It is the first time to use the L ligand to synthesis the Keggin-type polyoxometalate-based inorganic–organic hybrids. The two compounds possess the left- and right-handed helical chains and the POMs as pendants attach in the helical chains through Cu–O bonds. The two compounds have been characterized by elemental analyses, infrared (IR) spectroscopy, powder X-ray diffraction (PXRD), X-ray photoelectron spectra (XPS), thermogravimetric analysis (TGA) and photoluminescent spectroscopy. Moreover, nitrogen adsorption−desorption measurement, electrochemical and photocatalysis properties for degradation of methylene blue (MB) upon a UV irradiation of compound 1 have been examined. - Graphical abstract: Two new compounds, [CuH{sub 3}L{sub 2}(GeMo{sub 12}O{sub 40})]·2H{sub 2}O (1) and [CuH{sub 3}L{sub 2}(SiMo{sub 12}O{sub 40})]·2H{sub 2}O (2) have been synthesized under hydrothermal conditions. The two compounds possess the left- and right-handed helical chains. - Highlights: • The tridentate L ligand is first used to synthesis Keggin-type polyoxometalates. • The two compounds possess the left- and right-handed Cu–L helical chains. • Relationship between surface properties and photocatalytic activity was studied. • Two compounds exhibit photoluminescence of ligand-to-metal charge transfer.
ISSN 00224596
Educational Use Research
Learning Resource Type Article
Publisher Date 2014-11-15
Publisher Place United States
Journal Journal of Solid State Chemistry
Volume Number 219


Open content in new tab

   Open content in new tab