Carbonic anhydrase mimics for enhanced CO2 absorption in an amine-based capture solvent

Rachael A. Kelsey, David A. Miller, Sean R. Parkin, Kun Liu, Joe E. Remias, Yue Yang, Felice C Lightstone, Kunlei Liu, Cameron A. Lippert, Susan A. Odom

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


Two new small-molecule enzyme mimics of carbonic anhydrase were prepared and characterized. These complexes contain the salen-like ligand bis(hydroxyphenyl)phenanthroline. This ligand is similar to the salen-type ligands previously incorporated into carbonic anhydrase mimics but contains no hydrolyzable imine groups and therefore serves as a promising ligand scaffold for the synthesis of a more robust CO2 hydration catalyst. These homogeneous catalysts were investigated for CO2 hydration in concentrated primary amine solutions through which a dilute CO2 (14%) fluid stream was flowed and showed exceptional activity for increased CO2 absorption rates.

Original languageEnglish (US)
Pages (from-to)324-333
Number of pages10
JournalDalton Transactions
Issue number1
StatePublished - Nov 26 2015
Externally publishedYes

ASJC Scopus subject areas

  • Inorganic Chemistry


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