Journal
CHEMICAL SCIENCE
Volume 8, Issue 1, Pages 600-605Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6sc03450k
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Funding
- C1 Gas Refinery Program through the National Research Foundation of Korea [NRF-2015M3D3A1A01064880, NRF-2015R1A2A2A01004197]
- KAIST
- Aramco Overseas Company
- Supercomputer Center/Korea Institute of Science and Technology [KSC-2015-S1-0005]
- National Research Foundation of Korea [2015M3D3A1A01064880, 2015R1A2A2A01004197, 21A20151513223] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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 eta(1)-kC binding mode of CO2, while that of 5 shows bridging CO2 binding (mu(2)-kC: k(2)O,O') between the nickel and iron, presented as the first example of a nickel-mu-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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