Journal
JOURNAL OF PHYSICAL CHEMISTRY A
Volume 122, Issue 15, Pages 3772-3779Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpca.8b00362
Keywords
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Funding
- National Science Foundation (NSF) through the NSF AMO Physics Frontier Center at JILA [PHY-1125844, PHY-1734006]
- U.S. Department of Education through a GAANN Fellowship
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We present infrared spectra and density functional theory calculations of mass selected [Sn(CO2)(n)](-)cluster anions (n = 2-6). The spectra and structures of these clusters exhibit less structural diversity than those of analogous clusters with first -row transition metals, but are more complex than those for the heavy coinage metals or for the related [Bi(CO2)(n)](-) clusters. The most favorable core ion structure for all cluster sizes can be characterized as a Sn-oxalate complex, Sn[C2O4](-). Higher energy isomers based on a bidentate CO, ligand tightly bound to the metal atom in SnCO2- complexes are also observed, even for the largest cluster sizes studied here. For n = 2, another high energy isomer is found, featuring a CO, ligand weakly bound to the metal atom in a SnCO2- ion.
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