Hydrothermal synthesis, crystal structure and electrochemical properties of a novel 3D Dawson-type polyoxometalate supramolecular network

Autor:	LiHong Tian, NingHai Hu, ShiZhong Liu, Hengqing Jia
Rok vydání:	2008
Předmět:	Bipyridine chemistry.chemical_compound Crystallography Keggin structure chemistry Stereochemistry Hydrogen bond Polyoxometalate Supramolecular chemistry Molecule Hydrothermal synthesis General Chemistry Crystal structure
Zdroj:	Journal of Chemical Research. 2008:626-629
ISSN:	2047-6507 1747-5198
DOI:	10.3184/030823408x371218
Popis:	A novel Dawson-type polyoxometalate supramolecular architecture of the formula [4,4′-H2bipy]2.5·[4,4′-Hbipy]·[P2W18O62]·6.25H2O (4,4′-bipy = 4,4′-bipyridine) has been hydrothermally synthesised and characterised by means of elemental analysis, IR, CV and X-ray single-crystal diffraction. X-ray crystallography indicates that the title compound consists of Dawson-type polyoxoaions [P2W18O62]6-, water molecules and 4,4′-bipy units. The polyoxoanion clusters together with 4,4′-bipy units and water molecules to construct the three-dimensional supramolecular network through hydrogen bonds. The crystal structure analyses reveal that water molecules and 4,4′-bipy units play the important role on the packing arrangements of crystals. Cyclic voltammetry shows that the title compound exhibits three chemically reversible steps
Databáze:	OpenAIRE
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