Infrared photodissociation spectroscopy of protonated ammonia cluster ions, NH4+(NH3)n (n=5-8), by using infrared free electron laser

Kensuke Tono; Kotatsu Bito; Hiroshi Kondoh; Toshiaki Ohta; Koichi Tsukiyama

doi:10.1063/1.2404671

Infrared photodissociation spectroscopy of protonated ammonia cluster ions, NH₄⁺(NH₃)_n (n=5-8), by using infrared free electron laser

Kensuke Tono, Kotatsu Bito, Hiroshi Kondoh, Toshiaki Ohta, Koichi Tsukiyama

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

Infrared photodissociation action spectra of protonated ammonia cluster ions, N H4+ (N H3) n (n=5-8), were measured in the range of 1020-1210 cm-1 by using a tunable infrared free electron laser. Analyses by the density functional theory (DFT) show that the spectral features observed can be assigned to the 2 vibrational mode of the N H3 molecules in N H4+ (N H3) n. Size dependence of the spectra supports structural models obtained by the DFT calculations, in which the N H4+ ion is solvated by the four nearest-neighbor N H3 molecules. For N H4+ (N H3) 5, the spectrum between 1000 and 1700 cm-1 was measured. The 4 bands of the N H3 molecules and the N H4+ ion were found in the range of 1420-1700 cm-1.

Original language	English
Article number	224305
Journal	Journal of Chemical Physics
Volume	125
Issue number	22
DOIs	https://doi.org/10.1063/1.2404671
Publication status	Published - 2006
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1063/1.2404671

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@article{8ee0534801a549a9ab86de3b39819a84,

title = "Infrared photodissociation spectroscopy of protonated ammonia cluster ions, NH4+(NH3)n (n=5-8), by using infrared free electron laser",

abstract = "Infrared photodissociation action spectra of protonated ammonia cluster ions, N H4+ (N H3) n (n=5-8), were measured in the range of 1020-1210 cm-1 by using a tunable infrared free electron laser. Analyses by the density functional theory (DFT) show that the spectral features observed can be assigned to the 2 vibrational mode of the N H3 molecules in N H4+ (N H3) n. Size dependence of the spectra supports structural models obtained by the DFT calculations, in which the N H4+ ion is solvated by the four nearest-neighbor N H3 molecules. For N H4+ (N H3) 5, the spectrum between 1000 and 1700 cm-1 was measured. The 4 bands of the N H3 molecules and the N H4+ ion were found in the range of 1420-1700 cm-1.",

author = "Kensuke Tono and Kotatsu Bito and Hiroshi Kondoh and Toshiaki Ohta and Koichi Tsukiyama",

note = "Funding Information: The authors are grateful to Dr. T. Imai, Dr. Y. Ogi, Dr. E. O. Sako, M. Kawashita, K. Fukazawa, and K. Kuramochi for their valuable help during the experiment. One of the authors (K.T.) acknowledges a research fellowship from the Japan Society for the Promotion of Science (JSPS). This work was supported by Research Center for Green Photoscience and Technology at TUS and High Energy Accelerator Research Organization (KEK).",

year = "2006",

doi = "10.1063/1.2404671",

language = "English",

volume = "125",

journal = "Journal of Chemical Physics",

issn = "0021-9606",

publisher = "American Institute of Physics Publising LLC",

number = "22",

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TY - JOUR

T1 - Infrared photodissociation spectroscopy of protonated ammonia cluster ions, NH4+(NH3)n (n=5-8), by using infrared free electron laser

AU - Tono, Kensuke

AU - Bito, Kotatsu

AU - Kondoh, Hiroshi

AU - Ohta, Toshiaki

AU - Tsukiyama, Koichi

N1 - Funding Information: The authors are grateful to Dr. T. Imai, Dr. Y. Ogi, Dr. E. O. Sako, M. Kawashita, K. Fukazawa, and K. Kuramochi for their valuable help during the experiment. One of the authors (K.T.) acknowledges a research fellowship from the Japan Society for the Promotion of Science (JSPS). This work was supported by Research Center for Green Photoscience and Technology at TUS and High Energy Accelerator Research Organization (KEK).

PY - 2006

Y1 - 2006

N2 - Infrared photodissociation action spectra of protonated ammonia cluster ions, N H4+ (N H3) n (n=5-8), were measured in the range of 1020-1210 cm-1 by using a tunable infrared free electron laser. Analyses by the density functional theory (DFT) show that the spectral features observed can be assigned to the 2 vibrational mode of the N H3 molecules in N H4+ (N H3) n. Size dependence of the spectra supports structural models obtained by the DFT calculations, in which the N H4+ ion is solvated by the four nearest-neighbor N H3 molecules. For N H4+ (N H3) 5, the spectrum between 1000 and 1700 cm-1 was measured. The 4 bands of the N H3 molecules and the N H4+ ion were found in the range of 1420-1700 cm-1.

AB - Infrared photodissociation action spectra of protonated ammonia cluster ions, N H4+ (N H3) n (n=5-8), were measured in the range of 1020-1210 cm-1 by using a tunable infrared free electron laser. Analyses by the density functional theory (DFT) show that the spectral features observed can be assigned to the 2 vibrational mode of the N H3 molecules in N H4+ (N H3) n. Size dependence of the spectra supports structural models obtained by the DFT calculations, in which the N H4+ ion is solvated by the four nearest-neighbor N H3 molecules. For N H4+ (N H3) 5, the spectrum between 1000 and 1700 cm-1 was measured. The 4 bands of the N H3 molecules and the N H4+ ion were found in the range of 1420-1700 cm-1.

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Infrared photodissociation spectroscopy of protonated ammonia cluster ions, NH₄⁺(NH₃)_n (n=5-8), by using infrared free electron laser

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