The Activation of Sulfur Hexafluoride at Highly Reduced Low‐Coordinate Nickel Dinitrogen Complexes |
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Authors: | Dipl‐Chem Patrick Holze Dipl‐Chem Bettina Horn Prof?Dr Christian Limberg Dipl‐Chem Corinna Matlachowski Dr Stefan Mebs |
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Institution: | Humboldt‐Universit?t zu Berlin, Institut für Chemie, Brook‐Taylor‐Strasse 2, 12489 Berlin (Germany) http://www.chemie.hu‐berlin.de/aglimberg/ |
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Abstract: | The greenhouse gas sulfur hexafluoride is the common standard example in the literature of a very inert inorganic small molecule that is even stable against O2 in an electric discharge. However, a reduced β‐diketiminate nickel species proved to be capable of converting SF6 into sulfide and fluoride compounds at ambient standard conditions. The fluoride product complex features an unprecedented NiF]+ unit, where the Ni atom is only three‐coordinate, while the sulfide product exhibits a rare almost linear Ni(μ‐S)Ni]2+ moiety. The reaction was monitored applying 1H NMR, IR and EPR spectroscopic techniques resulting in the identification of an intermediate nickel complex that gave insight into the mechanism of the eight‐electron reduction of SF6. |
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Keywords: | coordination chemistry fluoride N ligands small‐molecule activation sulfur |
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