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Issue 24, 2009
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Investigation of the fluorolysis of magnesium methoxide

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Abstract

The structures of magnesium methoxide and magnesium methoxide fluoride obtained via the reaction of Mg(OCH3)2 with HF were investigated by single-crystal structure analysis and multinuclear solid-state NMR (13C and 19F). The fluorolysis of magnesium methoxide transforms the cubane structure units in hexanuclear dicubane units containing μ4-fluorine atoms. The resulting Mg6F2(OCH3)10(CH3OH)14 compound crystallizes in two different crystalline modifications. Moreover by slow thermal decomposition of the compound Mg6F2(OCH3)10(CH3OH)14, it loses two outer CH3OH molecules and leaves crystal structure Mg6F2(OCH3)10(CH3OH)12. The thermal behavior of Mg(OCH3)2(CH3OH)3.55 and Mg6F2(OCH3)10(CH3OH)14 was investigated by DTA and XRD. Both compounds lose the solvated methanol completely by heating above 150 °C and form MgO above 600 °C as well as amorphous MgF2 in the case of magnesium methoxide fluoride.

Graphical abstract: Investigation of the fluorolysis of magnesium methoxide

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Article information


Submitted
19 Jan 2009
Accepted
30 Mar 2009
First published
29 Apr 2009

Dalton Trans., 2009, 4729-4734
Article type
Paper

Investigation of the fluorolysis of magnesium methoxide

S. Wuttke, A. Lehmann, G. Scholz, M. Feist, A. Dimitrov, S. I. Troyanov and E. Kemnitz, Dalton Trans., 2009, 4729
DOI: 10.1039/B901030K

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