Infrared photodissociation spectroscopy of Mg+(NH 3)n (n=3-6): Direct coordination or solvation through hydrogen bonding

Kazuhiko Ohashi, Kazutaka Terabaru, Yoshiya Inokuchi, Yutaka Mune, Hironobu Machinaga, Nobuyuki Nishi, Hiroshi Sekiya

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Abstract

The infrared photodissociation spectra of mass-selected Mg +(NH3)n (n=3-6) are measured and analyzed with the aid of density functional theory calculations. No large frequency reduction is observed for the NH stretches of ammonia, suggesting that either all the ammonia molecules coordinate directly to the Mg+ ion or an additional ammonia in the second shell bridges two ammonias in the first shell through hydrogen bonds. Four or possibly five ammonia molecules are allowed to occupy the first shell, in striking contrast to the closure of the first shell in Mg+(H2O)3.

Original languageEnglish
Pages (from-to)264-270
Number of pages7
JournalChemical Physics Letters
Volume393
Issue number1-3
DOIs
Publication statusPublished - Jul 21 2004

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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