Carbon dioxide binding at a Ni/Fe center: synthesis and characterization of Ni (η 1-CO 2-κ C) and Ni-μ-CO 2-κ C: κ 2 O, O′-Fe
The degree of CO2 activation can be tuned by incorporating a distinct electronic
coordination environment at the nickel center. A mononuclear nickel carboxylate species (Ni–
CO2, 3) and a dinuclear nickel–iron carboxylate species (Ni–CO2–Fe, 5) were prepared.
The structure of 3 reveals a rare η1-κC binding mode of CO2, while that of 5 shows bridging
CO2 binding (μ2-κC: κ2O, O′) between the nickel and iron, presented as the first example
of a nickel-μ-CO2-iron species. The structural analyses of 3 and 5 based on XRD and DFT …
coordination environment at the nickel center. A mononuclear nickel carboxylate species (Ni–
CO2, 3) and a dinuclear nickel–iron carboxylate species (Ni–CO2–Fe, 5) were prepared.
The structure of 3 reveals a rare η1-κC binding mode of CO2, while that of 5 shows bridging
CO2 binding (μ2-κC: κ2O, O′) between the nickel and iron, presented as the first example
of a nickel-μ-CO2-iron species. The structural analyses of 3 and 5 based on XRD and DFT …
The degree of CO2 activation can be tuned by incorporating a distinct electronic coordination environment at the nickel center. A mononuclear nickel carboxylate species (Ni–CO2, 3) and a dinuclear nickel–iron carboxylate species (Ni–CO2–Fe, 5) were prepared. The structure of 3 reveals a rare η1-κC binding mode of CO2, while that of 5 shows bridging CO2 binding (μ2-κC:κ2O,O′) between the nickel and iron, presented as the first example of a nickel-μ-CO2-iron species. The structural analyses of 3 and 5 based on XRD and DFT data reveal a higher degree of CO2 activation in 5, imparted by the additional interaction with an iron ion.
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