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Issue 6, 2016
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Formation of a tetranickel octacarbonyl cluster from the CO2 reaction of a zero-valent nickel monocarbonyl species

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Abstract

The reaction of a zerovalent nickel complex {Na}{(PNP)Ni(CO)} (1) with CO2(g) results in the formation of a tetrameric cluster complex {(PNCOONaP)Ni(CO)2}4 (2) as the major product along with {(PNP)Ni}2-μ-CO32O,O (3), {(PNP)Ni}2-μ-CO22C,O (4) and (PNP)Ni(CO) (5). A labelling experiment with 13CO2(g) reveals that not only the carbamate moeity but also the CO ligand in 2 originate from CO2(g). The formation of both a carbonyl species 2 and a carbonate species 3 indicates that nickel-mediated reductive disproportionation of CO2 occurs. Alternatively, a direct CO2 oxidative reaction of 1 occurs to produce {(PNP)Ni}2-μ-CO22C,O (4) in a minor pathway. The synthesis and characterization of 2 and other products are described herein.

Graphical abstract: Formation of a tetranickel octacarbonyl cluster from the CO2 reaction of a zero-valent nickel monocarbonyl species

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Publication details

The article was received on 14 Jan 2016, accepted on 17 Mar 2016 and first published on 21 Mar 2016


Article type: Research Article
DOI: 10.1039/C6QI00011H
Inorg. Chem. Front., 2016,3, 849-855

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    Formation of a tetranickel octacarbonyl cluster from the CO2 reaction of a zero-valent nickel monocarbonyl species

    C. Yoo and Y. Lee, Inorg. Chem. Front., 2016, 3, 849
    DOI: 10.1039/C6QI00011H

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