Formation of a nickel carbon dioxide adduct and its transformation mediated by a Lewis acid

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An uncommon nickel dinitrogen adduct and its tendency toward CO2 binding are investigated using a ((PPP)-P-Me)Ni scaffold. ((PPP)-P-Me)Ni(N-2) (1) and {((PPP)-P-Me)Ni}(2)(mu-N-2) (2) were prepared and their treatment with CO2 revealed the formation of ((PPP)-P-Me)Ni(eta(2)-CO2) (3). This is a new type of CO2 binding for a zero-valent nickel center supported by three donor ligands, reminiscent of the CODH active site environment. Clear unique structural differences in 3 are evident when compared with previous 4-coordinate Ni-CO2 adducts. Compound 3 when treated with B(C6F5)(3) gives the Lewis acid-base adduct ((PPP)-P-Me)Ni{COOB(C6F5)(3)} (4) possessing a Ni-mu-CO2-kappa C-2, O-B moiety.
Publisher
ROYAL SOC CHEMISTRY
Issue Date
2014-10
Language
English
Article Type
Article
Keywords

MONOXIDE DEHYDROGENASE; MOLECULAR-STRUCTURE; DINITROGEN COMPLEX; CO2; ACTIVATION; CHEMISTRY; REACTIVITY; CORE; NI

Citation

CHEMICAL COMMUNICATIONS, v.50, no.78, pp.11458 - 11461

ISSN
1359-7345
DOI
10.1039/c4cc04800h
URI
http://hdl.handle.net/10203/194182
Appears in Collection
CH-Journal Papers(저널논문)
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