Side-on Coordination in Isostructural Nitrous Oxide and Carbon Dioxide Complexes of Nickel.
Angew Chem Int Ed Engl
; 60(13): 7077-7081, 2021 Mar 22.
Article
en En
| MEDLINE
| ID: mdl-33111387
ABSTRACT
A nickel complex incorporating an N2 O ligand with a rare η2 -N,N'-coordination mode was isolated and characterized by X-ray crystallography, as well as by IR and solid-state NMR spectroscopy augmented by 15 N-labeling experiments. The isoelectronic nickel CO2 complex reported for comparison features a very similar solid-state structure. Computational studies revealed that η2 -N2 O binds to nickel slightly stronger than η2 -CO2 in this case, and comparably to or slightly stronger than η2 -CO2 to transition metals in general. Comparable transition-state energies for the formation of isomeric η2 -N,N'- and η2 -N,O-complexes, and a negligible activation barrier for the decomposition of the latter likely account for the limited stability of the N2 O complex.
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MEDLINE
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En
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Angew Chem Int Ed Engl
Año:
2021
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Article
País de afiliación:
Canadá