A NEW Zn(II) COMPLEX OF UNUSUAL UNIDENTATE COORDINATION OF 4,4'-BIPYRIDINE, A NEW PRECURSOR FOR THE PREPARATION OF ZINC(II) OXIDE NANOPARTICLES
L. Dolatyari1, P. Seddigi2, A. Ramazani1, M.G. Amiri3, A. Morsali3
1Department of Chemistry, Zanjan Branch, Islamic Azad University, P O Box 49195-467, Zanjan, Islamic Republic of Iran
liladolatyari13510@yahoo.com
2Department of Chemistry, Payame Noor University, 19395-4697 Tehran, Islamic Republic of Iran
3Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P O Box 14155-4838 Tehran, Islamic Republic of Iran
morsali_a@modares.ac.ir
Ключевые слова: zinc(II), 4,4'-bipyridine, coordination polymer, fluorescence, nanoparticles
Страницы: 517-522
Подраздел: КРИСТАЛЛОХИМИЯ
Аннотация
A 4,4'-bipyridine Zn(II) complex [Zn(4,4'-bipy)2(H2O)4](ClO4)2×4(4,4'-bipy) is synthesized, characterized by elemental analysis, IR, 1H NMR, 13C NMR spectroscopy, and studied by X-ray crystallography. The compound forms monomeric units as a result of unusual unidentate coordination of 4,4'-bipy ligands. The thermal stability of the compound is studied by thermal analyses. Furthermore, the complex is luminescent with emission maxima at 329 nm in the methanol solvent. Different sizes of zinc(II) oxide nanoparticles are prepared by calcination of the [Zn(4,4'-bipy)2(H2O)4](ClO4)2×4(4,4'-bipy) compound at two different temperatures. These nanostructures are characterized by X-ray powder diffraction and scanning electron microscopy.
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