Journal Article

FZJ-2016-05163

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Polyoxoanions assembled by the condensation of vanadate, tungstate and selenite: solution studies and crystal structures of the mixed metal derivatives (NMe $_{4}$) $_{2}$ Na $_{2}$ [W$^{VI}$ $_{4}$ V $^{V}$ $_{2}$ O $_{19}$ ]·8H$_{2}$O and (NMe$_{4}$ )$_{4.83}$ [(Se$^{IV}$W$^{VI}$$_{4.57}$ V$^{V}$$_{4.43}$O$_{33}$)$_{2}$ (W$^{VI}$(O)(H$_{2}$O))(V $^{V}$O) $_{2.6}$ ]·10.57H$_{2}$O

Abramov, P. A. (Corresponding author) ; Peresypkina, E. V. ; Izarova, N.FZJ* ; Vicent, C. ; Zhdanov, A. A. ; Kompankov, N. B. ; Gutsul, T. ; Sokolov, M. N.

2016
RSC London

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Please use a persistent id in citations: doi:10.1039/C5NJ00858A

Abstract: The reaction of acidified aqueous solutions of Na2WO4, NaVO3 and SeO2 in a 16 : 4 : 3 molar ratio gives a complex mixture of polyoxometalates (POMs) with both WVI and VV addenda, formulated as [(SeIVWVIxVV9−xO33)2(WVIO(H2O))(VO)m]n− with x = 4, 5, 6; m = 2 or 3. In solution, the sandwich-type complexes [(SeIVWVIxVV9−xO33)2(WVIO(H2O))(VO)m]n− slowly lose Se and convert into [WVI4VV2O19]4− and further to [WVI5VVO19]3− with a Lindqvist-type structure. These transformations were monitored with 51V and 77Se NMR, electrospray mass-spectrometry and capillary electrophoresis. Crystals of (NMe4)2Na2[(W4V2)O19]·8H2O (1) and (NMe4)4.83[(SeW4.57V4.43O33)2(W(O)(H2O))(VO)2.6]·10.57H2O (2) were isolated and structurally characterized.

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Contributing Institute(s):

1. Elektronische Eigenschaften (PGI-6)

Research Program(s):

1. 522 - Controlling Spin-Based Phenomena (POF3-522) (POF3-522)

Appears in the scientific report 2016

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Database coverage:
; Allianz-Lizenz / DFG ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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