Theoretical study on ammonia cluster ions: Nature of kinetic magic number

Hiromi Nakai; Touichirou Goto; Yoshiki Okada; Takaaki Orii; Kazuo Takeuchi; Masahiko Ichihashi; Tamotsu Kondow

doi:10.1063/1.481341

Theoretical study on ammonia cluster ions: Nature of kinetic magic number

Hiromi Nakai^*, Touichirou Goto, Yoshiki Okada, Takaaki Orii, Kazuo Takeuchi, Masahiko Ichihashi, Tamotsu Kondow

^*Corresponding author for this work

School of Advanced Science and Engineering

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

7 Citations (Scopus)

Abstract

We theoretically investigated collision cross sections due to the attractive forces between NH₄⁺(NH₃)_n-1 (n = 2-8) and ND₃. We found that the dependence of the collision cross sections on collision energy and cluster size are comparable to those of measured fusion cross sections. The kinetic magic number, n = 5, is related to the structure of the pentamer. Namely, the center ion in the pentamer is surrounded by first-shell ammonia molecules.

Original language	English
Pages (from-to)	7409-7415
Number of pages	7
Journal	Journal of Chemical Physics
Volume	112
Issue number	17
DOIs	https://doi.org/10.1063/1.481341
Publication status	Published - 2000 May 1

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1063/1.481341

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AU - Nakai, Hiromi

AU - Goto, Touichirou

AU - Okada, Yoshiki

AU - Orii, Takaaki

AU - Takeuchi, Kazuo

AU - Ichihashi, Masahiko

AU - Kondow, Tamotsu

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AB - We theoretically investigated collision cross sections due to the attractive forces between NH4+(NH3)n-1 (n = 2-8) and ND3. We found that the dependence of the collision cross sections on collision energy and cluster size are comparable to those of measured fusion cross sections. The kinetic magic number, n = 5, is related to the structure of the pentamer. Namely, the center ion in the pentamer is surrounded by first-shell ammonia molecules.

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JF - Journal of Chemical Physics

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Theoretical study on ammonia cluster ions: Nature of kinetic magic number

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