An unprecedented extended architecture constructed from a 2-D interpenetrating cationic coordination framework templated by SiW{sub 12}O{sub 40}{sup 4-} anion

Journal Article · Sat Mar 15 00:00:00 EDT 2008 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2007.12.029· OSTI ID:21043924

Hongyan, Lin; Yanfeng, Bi; Baokuan, Chen; Guocheng, Liu ^[1]

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1. Faculty of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121000 (China)

A novel inorganic-organic hybrid compound based on polyoxometalates (POMs) and organic ligand formulated as [Cu{sub 2}(bpp){sub 4}(H{sub 2}O){sub 2}](SiW{sub 12}O{sub 40}){approx}6H{sub 2}O (1) [bpp=1,3-bis(4-pyridyl)propane], was hydrothermally synthesized and structurally characterized by elemental analysis, single-crystal X-ray diffraction analysis, IR, TG, and cyclic voltammetry. Crystal data for 1: Orthorhombic, Pbcn, a=23.0085(19) A, b=14.6379(12) A, c=23.6226(19) A, V=7956.0(11) A{sup 3}, Z=4, Dc=3.315 g cm{sup -3}, and R(final)=0.0826. X-ray diffraction study reveals that compound 1 was the first interpenetrating network of 2-D metal-organic cationic coordination framework [Cu{sub 2}(bpp){sub 4}(H{sub 2}O){sub 2}]{sub n}{sup 4n+}, in which Keggin-type anions SiW{sub 12}O{sub 40}{sup 4-} has been used as a non-coordinating anionic template. The electrochemical property of 1-bulk modified carbon paste electrode (1-CPE) has been studied, and the results indicate that 1-CPE has good electrocatalytic activities toward the reduction of nitrite in 1 M H{sub 2}SO{sub 4} aqueous solution. - Graphical abstract: Compound [Cu{sub 2}(bpp){sub 4}(H{sub 2}O){sub 2}](SiW{sub 12}O{sub 40}){approx}6H{sub 2}O (1) represents the first 2-D interpenetrating cationic metal-organic frameworks (MOFs) templated by Keggin-type anions. These MOF layers are stacked together along the crystallographic c axis exactly to construct large cubic-like channels (with dimensions of 12.3x13.6 A) occupied by SiW{sub 12}O{sub 40}{sup 4-} clusters.

• OSTI ID: 21043924
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 3 Vol. 181; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
AQUEOUS SOLUTIONS
COPPER COMPLEXES
CRYSTALLOGRAPHY
ELECTROCHEMISTRY
HYDROTHERMAL SYNTHESIS
LIGANDS
MONOCRYSTALS
NITRITES
ORGANOMETALLIC COMPOUNDS
ORTHORHOMBIC LATTICES
OXIDES
SILICON COMPOUNDS
SULFURIC ACID
TUNGSTEN COMPOUNDS
VOLTAMETRY
X-RAY DIFFRACTION