Interaction of CO2 with Atomic Manganese in the Presence of an Excess Negative Charge Probed by Infrared Spectroscopy of [Mn(CO2)n]- Clusters

Michael C Thompson; Jacob Ramsay; J Mathias Weber

doi:10.1021/acs.jpca.7b06870

Interaction of CO₂ with Atomic Manganese in the Presence of an Excess Negative Charge Probed by Infrared Spectroscopy of [Mn(CO₂)_n]^- Clusters

J Phys Chem A. 2017 Oct 12;121(40):7534-7542. doi: 10.1021/acs.jpca.7b06870. Epub 2017 Oct 2.

Authors

Michael C Thompson¹, Jacob Ramsay¹, J Mathias Weber¹

Affiliation

¹ JILA and Department of Chemistry and Biochemistry, University of Colorado , Boulder, Colorado 80309-0440, United States.

PMID: 28925701
DOI: 10.1021/acs.jpca.7b06870

Abstract

We report infrared photodissociation spectra of manganese-CO₂ cluster anions, [Mn(CO₂)_n]^- (n = 2-10) to probe structural motifs characterizing the interaction between Mn and CO₂ in the presence of an excess electron. We interpret the experimental spectra through comparison with infrared spectra predicted from density functional theory calculations. The cluster anions consist of core ions combining a Mn atom with a variety of ligands, solvated by additional CO₂ molecules. Structural motifs of ligands evolve with increasing cluster size from simple monodentate and bidentate CO₂ ligands to oxalate ligands and combinations of these structural themes.