caa a22 4500 463183991 CHVBK 20180406164847.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s10870-006-9137-x doi (NATIONALLICENCE)springer-10.1007/s10870-006-9137-x Structural determination by X-Ray diffraction and 183W NMR spectroscopy of mono substituted hexatungstates [( n -C4H9)4N]3MW5O19 (M [Elektronische Daten] Nb, V) [F. Bannani, H. Driss, R. Thouvenot, M. Debbabi] The tetrabutylammonium salt of mononiobotungstate [(n-C4H9)4N]3NbW5O19 (1) and the tetrabutylammonium salt of monovanadotungstate [(n-C4H9)4N]3VW5O19 (2) are isotypes; both crystallize in the monoclinic system, space group C2/c (N° 15) with Z=8. The cell parameters for 1 are a=30.4038(8) Å, b=18.5948(8)Å, c=27.3330(3)Å, β=112.4555(6)°, V=14281.1(7)Å3 and the final reliability factors are R=0.043 and R w=0.047 for 5801 reflections. The cell parameters for 2 are a=30.096(8)Å, b=18.373(3)Å, c= 27.201(6)Å, β=112.402(14)°, V=13906(5)Å3 and the final reliability factors are R=0.048 and R w=0.054 for 6122 reflections. Both anions, [NbW5O19] 3− and [VW5O19] 3− exhibit the Lindqvist structure of the parent hexatungstate anion. The six metal positions are disordered and for each metal site the occupation factor is close to 1/6 M (M=Nb, V) and 5/6W. Furthermore the two compounds were characterized by IR in the solid state, and 183W solution NMR. The 183W spectrum of [NbW5O19] 3− presents two resonances with relative intensities 4:1 in agreement with the C4v symmetry of the anion. Springer Science+Business Media, Inc., 2006 mono substituted hexatungstates nationallicence peroxo polyoxometalates nationallicence Lindqvist nationallicence crystal structure nationallicence NMR spectroscopy nationallicence Bannani F. Laboratoire de Physico-chimie des Matériaux, Faculté des Sciences de Monastir, 5019, Monastir, Tunisia aut Driss H. Laboratoire de Physico-chimie des Matériaux, Faculté des Sciences de Monastir, 5019, Monastir, Tunisia aut Thouvenot R. Laboratoire de Chimie Inorganique et Matériaux Moléculaires, UMR-CNRS 7071, FR 2769, Université Pierre et Marie Curie, 4 place Jussieu, 75252, Paris Cedex 05, France aut Debbabi M. Laboratoire de Physico-chimie des Matériaux, Faculté des Sciences de Monastir, 5019, Monastir, Tunisia aut Journal of Chemical Crystallography Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 37/1(2007-01-01), 37-48 1074-1542 37:1<37 2007 37 10870 https://doi.org/10.1007/s10870-006-9137-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10870-006-9137-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bannani F. Laboratoire de Physico-chimie des Matériaux, Faculté des Sciences de Monastir, 5019, Monastir, Tunisia aut NATIONALLICENCE 700 1- Driss H. Laboratoire de Physico-chimie des Matériaux, Faculté des Sciences de Monastir, 5019, Monastir, Tunisia aut NATIONALLICENCE 700 1- Thouvenot R. Laboratoire de Chimie Inorganique et Matériaux Moléculaires, UMR-CNRS 7071, FR 2769, Université Pierre et Marie Curie, 4 place Jussieu, 75252, Paris Cedex 05, France aut NATIONALLICENCE 700 1- Debbabi M. Laboratoire de Physico-chimie des Matériaux, Faculté des Sciences de Monastir, 5019, Monastir, Tunisia aut NATIONALLICENCE 773 0- Journal of Chemical Crystallography Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 37/1(2007-01-01), 37-48 1074-1542 37:1<37 2007 37 10870 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer