Issue 6, 2016

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

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

Supplementary files

Article information

Article type
Research Article
Submitted
04 ربيع الثاني 1437
Accepted
08 جمادى الثانية 1437
First published
12 جمادى الثانية 1437

Inorg. Chem. Front., 2016,3, 849-855

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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