AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name. |
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STUDIA CHEMIA - Issue no. 2 (Tom I / 2010 | |||||||
Article: |
SYNTHESIS AND SPECTROSCOPIC INVESTIGATIONS OF NEW UO22+ POLYOXOMETALATE COMPLEXES. Authors: DAN RUSU, OANA BABAN, SIMINA DREVE, MIRCEA PUIA, MARIANA RUSU. |
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Abstract: The Na10[(UO2)2(H2O)2X2W20O70]∙nH2O heteropolyoxo-metalates (Na101: X =SbIII, n = 28; Na102: X =BiIII, n = 34) were synthesized and investigated by chemical and thermal analysis, FT- IR, Raman, UV-Vis and fluorescence emission spectroscopies for determining subsequently the behavior of the encapsulated uranyl cations, their coordination by the tungstoantimonate(III) or tungstobismutate(III) fragments, and the corresponding pentagonal-bipyramidal local symmetry. Polyoxoanions [(UO2)2(H2O)2X2W20O70]10- are structural similarly and consist from two b-B-[XW9O33]9- (X= SbIII, BiIII) framework which are linked by an equatorial belt of two UO2(H2O)22+ units and two WO2 groups.
Keywords: Uranium (VI); Heteropolyoxotungstates; IR, Raman, UV, Vis and fluorescence emission spectroscopies. |
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