Display options
Cite
Khabibulin D, Romanenko K, Zuev M, et al. Solid state NMR characterization of individual compounds and solid solutions formed in Sc(2)O(3)--V(2)O(5)--Nb(2)O(5)--Ta(2)O(5) system. Magn Reson Chem. 2007;45(11):962-70doi: 10.1002/mrc.2086.
Khabibulin, D., Romanenko, K., Zuev, M., & Lapina, O. (2007). Solid state NMR characterization of individual compounds and solid solutions formed in Sc(2)O(3)--V(2)O(5)--Nb(2)O(5)--Ta(2)O(5) system. Magnetic resonance in chemistry : MRC, 45(11), 962-70. https://doi.org/10.1002/mrc.2086
Khabibulin, Dzhalil, et al. "Solid state NMR characterization of individual compounds and solid solutions formed in Sc(2)O(3)--V(2)O(5)--Nb(2)O(5)--Ta(2)O(5) system." Magnetic resonance in chemistry : MRC vol. 45,11 (2007): 962-70. doi: https://doi.org/10.1002/mrc.2086
Khabibulin D, Romanenko K, Zuev M, Lapina O. Solid state NMR characterization of individual compounds and solid solutions formed in Sc(2)O(3)--V(2)O(5)--Nb(2)O(5)--Ta(2)O(5) system. Magn Reson Chem. 2007 Nov;45(11):962-70. doi: 10.1002/mrc.2086. PMID: 17924354.
Copy Download .nbib Format: NLM
Share it on

Magn Reson Chem. 2007 Nov;45(11):962-70. doi: 10.1002/mrc.2086.

Solid state NMR characterization of individual compounds and solid solutions formed in Sc(2)O(3)--V(2)O(5)--Nb(2)O(5)--Ta(2)O(5) system.

Magnetic resonance in chemistry : MRC

Dzhalil Khabibulin, Konstantin Romanenko, Mikhail Zuev, Olga Lapina

Affiliations

  1. Boreskov Institute of Catalysis, SB RAS, Prosp. Lavrentieva 5, 630090 Novosibirsk, Russia.

PMID: 17924354 DOI: 10.1002/mrc.2086

Abstract

In this study, (51)V, (45)Sc and (93)Nb MAS NMR combined with satellite transition spectroscopy analysis were used to characterize the complex solid mixtures: VNb(9(1-x))Ta(9x)O(25), ScNb((1-x))Ta(x)O(4) and ScNb(2(1-x))Ta(2x)VO(9) (x = 0, 0.3, 0.5, 0.7, 1.0). This led us to describe the structures of Sc and V sites. The conclusions were based on accurate values for (51)V quadrupole coupling and chemical shift tensors obtained with (51)V MAS NMR/SATRAS for VNb(9)O(25), VTa(9)O(25) and ScVO(4). The (45)Sc NMR parameters have been obtained for Sc(2)O(3), ScVO(4), ScNbO(4) and ScTaO(4). On the basis of (45)Sc NMR and data available from literature, the ranges of the (45)Sc chemical shift have been established for ScO(6) and ScO(8). The gradual change of the (45)Sc and (51)V NMR parameters with x confirms the formation of solid solutions in the process of synthesis of VNb(9(1-x))Ta(9x)O(25) and ScNb((1-x))Ta(x)O(4), in contrast to ScNb(2(1-x))Ta(2x)VO(9). The cation sublattice of ScNb((1-x))Ta(x)O(4) is found to be in octahedral coordination. The V sites in VNb(9(1-x))Ta(9x)O(25) are present in the form of slightly distorted tetrahedra. The (93)Nb NMR parameters have been obtained for VNb(9)O(25).

(c) 2007 John Wiley & Sons, Ltd.

Publication Types