Binding CO2 by a Cr8 Metallacrown.
Iñigo J Vitorica-YrezabalDaniel Florin SavaGrigore A TimcoMartyn S BrownMathew SavageHarry G W GodfreyFlorian MoreauMartin SchröderFlor SipersteinLee BrammerSihai YangMartin P AttfieldJoseph J W McDouallRichard E P WinpennyPublished in: Angewandte Chemie (International ed. in English) (2017)
The {Cr8 } metallacrown [CrF(O2 Ct Bu)2 ]8 , containing a F-lined internal cavity, shows high selectivity for CO2 over N2 . DFT calculations and absorption studies support the multiple binding of F-groups to the C-center of CO2 (C⋅⋅⋅F 3.190(9)-3.389(9) Å), as confirmed by single-crystal X-ray diffraction.
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