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Collisional reaction of water cluster cations (H2O)n+ (n=2 and 3) with D2O

✍ Scribed by Satoru Yamaguchi; Satoshi Kudoh; Yoko Kawai; Yoshiki Okada; Takaaki Orii; Kazuo Takeuchi

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 213 KB
Volume: 377
Category: Article
ISSN: 0009-2614
DOI: 10.1016/s0009-2614(03)01085-6

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✦ Synopsis

Collisional reactions of size-and energy-selected unprotonated water clusters (H 2 O) þ n (n ¼ 2 and 3) in a singlecollision with D 2 O were investigated at very low collision energy ranging from 0.05 to 2.0 eV using guided-ion beam tandem mass spectrometry. First, in the unimolecular and collision-induced dissociations of (

Second, the measured incorporation cross-section of (H 2 O) þ 2 was found to be smaller than that of H þ (H 2 O) 2 . From the dipole moment obtained by ab initio calculation, we found that the small values of the incorporation cross-section for (H 2 O) þ 2 were caused by the small value, 0.0 debye, of the dipole moment of the cluster.

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