Infrared photodissociation spectroscopy of [Al(NH3) n]+ (n = 1-5): Solvation structures and insertion reactions of Al+ into NH3

Yutaka Mune, Kazuhiko Ohashi, Takuro Iino, Yoshiya Inokuchi, Ken Judai, Nobuyuki Nishi, Hiroshi Sekiya

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12 Citations (Scopus)


The [Al(NH3)n]+ ions with n = 1-5 are studied by infrared photodissociation spectroscopy and density functional theory calculations. The inserted [H-Al-NH2]+ structure is calculated to be higher in energy than the adduct [Al-NH3] + structure. However, incremental solvation stabilizes the inserted structure more efficiently than the adduct structure, because of a larger effective charge on the Al atom in [H-Al-NH2]+. Actually, the infrared spectra demonstrate that the [(H-Al-NH2)(NH 3)n-1]+ ions are predominant over [Al-(NH 3)n]+ for n ≥ 4, while the adduct structures dominate the spectra of [Al(NH3)n • Ar]+ for n = 1-3.

Original languageEnglish
Pages (from-to)201-206
Number of pages6
JournalChemical Physics Letters
Issue number1-3
Publication statusPublished - Feb 15 2006

All Science Journal Classification (ASJC) codes

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

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