@article{4283,
  author = {Michael Thompson and J. Mathias Weber},
  title = {Infrared Photodissociation Spectra of [Sn(CO2)n]- Cluster Ions},
  abstract = {<p>We present infrared spectra and density functional theory calculations of mass selected [Sn(CO<sub>2</sub>)<sub>n</sub>]<sup>-</sup>\&nbsp;cluster anions (n\&nbsp;= 2\textendash6). 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(CO<sub>2</sub>)<sub>n</sub>]<sup>-</sup>\&nbsp;clusters. The most favorable core ion structure for all cluster sizes can be characterized as a Sn-oxalate complex, Sn[C<sub>2</sub>O<sub>4</sub>]<sup>-</sup>. Higher energy isomers based on a bidentate η<sup>2</sup>-(C,O) CO<sub>2</sub>\&nbsp;ligand tightly bound to the metal atom in SnCO<sub>2</sub><sup>\textendash</sup>\&nbsp;complexes are also observed, even for the largest cluster sizes studied here. For\&nbsp;n\&nbsp;= 2, another high energy isomer is found, featuring a CO<sub>2</sub>\&nbsp;ligand weakly bound to the metal atom in a SnCO<sub>2</sub><sup>\textendash</sup>\&nbsp;ion.</p>},
  year = {2018},
  journal = {The Journal of Physical Chemistry A},
  volume = {122},
  pages = {3772-3779},
  month = {2018-03},
  issn = {1089-5639},
  url = {https://pubs.acs.org/doi/pdfplus/10.1021/acs.jpca.8b00362},
  doi = {10.1021/acs.jpca.8b00362},
}