An unprecedented extended architecture constructed from a 2-D interpenetrating cationic coordination framework templated by SiW{sub 12}O{sub 40}{sup 4-} anion
- 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, Vol. 181, Issue 3; Other Information: DOI: 10.1016/j.jssc.2007.12.029; PII: S0022-4596(07)00543-9; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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