Display options
Cite
Nielsen UG, Boisen A, Brorson M, et al. Aluminum orthovanadate (AlVO4): synthesis and characterization by (27)Al and 51V MAS and MQMAS NMR spectroscopy. Inorg Chem. 2002;41(24):6432-9doi: 10.1021/ic0204023.
Nielsen, U. G., Boisen, A., Brorson, M., Jacobsen, C. J., Jakobsen, H. J., & Skibsted, J. (2002). Aluminum orthovanadate (AlVO4): synthesis and characterization by (27)Al and 51V MAS and MQMAS NMR spectroscopy. Inorganic chemistry, 41(24), 6432-9. https://doi.org/10.1021/ic0204023
Nielsen, Ulla Gro, et al. "Aluminum orthovanadate (AlVO4): synthesis and characterization by (27)Al and 51V MAS and MQMAS NMR spectroscopy." Inorganic chemistry vol. 41,24 (2002): 6432-9. doi: https://doi.org/10.1021/ic0204023
Nielsen UG, Boisen A, Brorson M, Jacobsen CJ, Jakobsen HJ, Skibsted J. Aluminum orthovanadate (AlVO4): synthesis and characterization by (27)Al and 51V MAS and MQMAS NMR spectroscopy. Inorg Chem. 2002 Dec 02;41(24):6432-9. doi: 10.1021/ic0204023. PMID: 12444788.
Copy Download .nbib Format: NLM
Share it on

Inorg Chem. 2002 Dec 02;41(24):6432-9. doi: 10.1021/ic0204023.

Aluminum orthovanadate (AlVO4): synthesis and characterization by (27)Al and 51V MAS and MQMAS NMR spectroscopy.

Inorganic chemistry

Ulla Gro Nielsen, Astrid Boisen, Michael Brorson, Claus J H Jacobsen, Hans J Jakobsen, Jørgen Skibsted

Affiliations

  1. Instrument Centre for Solid-State NMR Spectroscopy, Department of Chemistry, University of Aarhus, DK-8000 Aarhus C, Denmark.

PMID: 12444788 DOI: 10.1021/ic0204023

Abstract

Polycrystalline samples of AlVO(4) have been prepared by two methods of synthesis and characterized by (27)Al and (51)V MAS NMR spectroscopy at 14.1 T. The MAS NMR spectra clearly reveal that essentially pure samples with minor impurities of V(2)O(5) and alumina have been obtained. From these samples, (27)Al quadrupole coupling parameters and isotropic chemical shifts as well as the magnitudes and relative orientations of the (51)V quadrupole coupling and chemical shift tensors have been determined with high precision for AlVO(4). These data have been obtained from a combined analysis of multiple-quantum (MQ) MAS NMR spectra and MAS NMR spectra of the central and satellite transitions. The (27)Al and (51)V NMR data show that the asymmetric unit for AlVO(4) contains three isolated VO(4) tetrahedra, one pentacoordinated Al site, and two AlO(6) octahedra. This is in agreement with the supposition that AlVO(4) is isostructural with FeVO(4) and with a recent structure refinement for AlVO(4) based on powder X-ray diffraction (XRD) data. The favorable agreement between the refined crystal structure from powder XRD and the NMR parameters is apparent from a convincing correlation between experimental (51)V quadrupole tensor elements and calculated (51)V electric field gradient tensor elements obtained by the point-monopole approach. An assignment of the (27)Al NMR data is obtained from similar calculations of the (27)Al electric field gradients and by estimation of the distortion of the AlO(6) octahedra.

Publication Types