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Anion recognition by uranyl-salophen derivatives as probed by infrared multiple photon dissociation spectroscopy and ab initio modeling.

Authors
  • Bodo, Enrico
  • Ciavardini, Alessandra
  • Dalla Cort, Antonella
  • Giannicchi, Ilaria
  • Yafteh Mihan, Francesco
  • Fornarini, Simonetta
  • Vasile, Silvana
  • Scuderi, Debora
  • Piccirillo, Susanna
Type
Published Article
Journal
Chemistry - A European Journal
Publisher
Wiley (John Wiley & Sons)
Publication Date
Sep 08, 2014
Volume
20
Issue
37
Pages
11783–11792
Identifiers
DOI: 10.1002/chem.201402788
PMID: 25098170
Source
Medline
Keywords
License
Unknown

Abstract

The vibrational features and molecular structures of complexes formed by a series of uranyl-salophen receptors with simple anions, such as Cl(-) , H(-) , and HCOO(-) , have been investigated in the gas phase. Spectra of the anionic complexes were studied in the $\tilde \nu $=800-1800 cm(-1) range by mass-selective infrared multiple photon dissociation (IRMPD) spectroscopy with a continuously tunable free-electron laser. The gas-phase decarboxylation of the formate adducts produces uranyl-salophen monohydride anions, which have been characterized for the first time and reveal a strong UH bond, the nature of which has been elucidated theoretically. The spectra are in excellent agreement with the results obtained from high-quality ab initio calculations, which provided the structure and binding features of the anion-receptor complexes.

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