TY  - JOUR
AU  - Abramov, Pavel A.
AU  - Peresypkina, Eugenia V.
AU  - Izarova, Natalya
AU  - Vicent, Cristian
AU  - Zhdanov, Artem A.
AU  - Kompankov, Nikolay B.
AU  - Gutsul, Tatiana
AU  - Sokolov, Maxim N.
TI  - 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
JO  - New journal of chemistry
VL  - 40
IS  - 2
SN  - 0398-9836
CY  - London
PB  - RSC
M1  - FZJ-2016-05163
SP  - 937 - 944
PY  - 2016
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000371559000010
DO  - DOI:10.1039/C5NJ00858A
UR  - https://juser.fz-juelich.de/record/819520
ER  -