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Issue 20, 2014
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Mononuclear anionic AO2X3 compounds with non-VSEPR structure

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Abstract

The molybdenyl compound [NBu4][MoO2(C6F5)3] (1) has been obtained by low-temperature treatment of MoO2Cl2 with LiC6F5 in Et2O followed by addition of [NBu4]Br. This compound of the (AO2X3) type shows an unusual five-coordinate structure not lying in the Berry-pseudorotation path: it can be described rather as an edge-capped tetrahedron (TE-5). The same kind of structure has been found by DFT calculations to be the most energetically favored for the mononuclear (MoO2X3) model species, where X = H, Cl or CN. Compound 1 exhibits marked stereochemical stability, as it shows no sign of exchange between chemically inequivalent C6F5 groups even at 150 °C in dmf solution (19F NMR spectroscopy).

Graphical abstract: Mononuclear anionic AO2X3 compounds with non-VSEPR structure

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Publication details

The article was received on 19 Feb 2014, accepted on 03 Mar 2014 and first published on 03 Mar 2014


Article type: Paper
DOI: 10.1039/C4DT00525B
Author version available: Download Author version (PDF)
Citation: Dalton Trans., 2014,43, 7615-7621
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    Mononuclear anionic AO2X3 compounds with non-VSEPR structure

    M. A. García-Monforte, M. Baya, M. P. Betoré, A. Martín and B. Menjón, Dalton Trans., 2014, 43, 7615
    DOI: 10.1039/C4DT00525B

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