Coordination and solvation of noble metal ions: Infrared spectroscopy of Ag+(H2O)n

T. Iino, K. Ohashi, K. Inoue, K. Judai, N. Nishi, H. Sekiya

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23 Citations (Scopus)


Vibrational spectra of mass-selected Ag+(H2O) n ions are measured by infrared photodissociation spectroscopy and analyzed with the aid of density functional theory calculations. Hydrogen bonding between H2O molecules is found to be absent for cold Ag +(H2O)3, but detected for Ag+(H 2O)4 through characteristic changes in the position and intensity of OH-stretching transitions. The third H2O coordinates directly to Ag+, but the fourth H2O prefers solvation through hydrogen bonding. The preference of the tri-coordinated form is attributed to the inefficient 5s-4d hybridization in Ag+, in contrast to the efficient 4s-3d hybridization in Cu+. For Ag +(H2O)4, however, di-coordinated isomers are identified in addition to the tri-coordinated one.

Original languageEnglish
Pages (from-to)37-40
Number of pages4
JournalEuropean Physical Journal D
Issue number1-3
Publication statusPublished - Jul 2007

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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