title: Carbon dioxide is tightly bound in the [Co(Pyridine)(CO2)](-) anionic complex.
abstract: The [Co(Pyridine)(CO2)](-) anionic complex was studied through the combination of photoelectron spectroscopy and density functional theory calculations. This complex was envisioned as a primitive model system for studying CO2 binding to negatively charged sites in metal organic frameworks. The vertical detachment energy (VDE) measured via the photoelectron spectrum is 2.7 eV. Our calculations imply a structure for [Co(Pyridine)(CO2)](-) in which a central cobalt atom is bound to pyridine and CO2 moieties on either sides. This structure was validated by acceptable agreement between the calculated and measured VDE values. Based on our calculations, we found CO2 to be bound within the anionic complex by 1.4 eV.
authors.affiliation: Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA.
authors.forename: Jacob D
authors.initials: JD
authors.lastname: Graham
authors.affiliation: Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA.
authors.forename: Allyson M
authors.initials: AM
authors.lastname: Buytendyk
authors.affiliation: Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA.
authors.forename: Xinxing
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Chemistry, Seoul National University, Seoul 151-747, South Korea.
authors.forename: Seong K
authors.initials: SK
authors.lastname: Kim
authors.affiliation: Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA.
authors.forename: Kit H
authors.initials: KH
authors.lastname: Bowen