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Issue 4, 2008
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Molybdenum magnetic shielding and quadrupolar tensors for a series of molybdate salts: a solid-state 95Mo NMR study

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Abstract

A series of molybdate, MoO42–, salts have been studied using solid-state 95Mo NMR spectroscopy at applied magnetic field strengths of 11.75, 17.63 and 21.14 T. In contrast to previous investigations, the principal components of the Mo shielding and EFG tensors have been obtained, as well as their relative orientations. At the fields employed, the anisotropic Mo shielding and quadrupolar interactions make significant contributions to the observed 95Mo central transition NMR lineshapes. Based on available structural data, the extent of distortion of the MoO42– anion from Td symmetry is reflected in the observed 95Mo nuclear quadrupolar coupling constants for the molybdate salts with divalent cations (i.e., Ca2+, Sr2+, Cd2+, Ba2+, Pb2+), but no correlation is found for molybdate salts containing the monovalent alkali metal (Li+, K+, Rb+, Cs+) cations.

Graphical abstract: Molybdenum magnetic shielding and quadrupolar tensors for a series of molybdate salts: a solid-state 95Mo NMR study

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Publication details

The article was received on 29 Aug 2007, accepted on 26 Oct 2007 and first published on 21 Nov 2007


Article type: Paper
DOI: 10.1039/B713276J
Citation: Phys. Chem. Chem. Phys., 2008,10, 574-581
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    Molybdenum magnetic shielding and quadrupolar tensors for a series of molybdate salts: a solid-state 95Mo NMR study

    M. A. M. Forgeron and R. E. Wasylishen, Phys. Chem. Chem. Phys., 2008, 10, 574
    DOI: 10.1039/B713276J

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