TY - JOUR

T1 - Adsorption reaction of polar organic molecules on Sin + cluster ions

AU - Nakagawara, Wakana

AU - Tsunoyama, Hironori

AU - Furuya, Ari

AU - Misaizu, Fuminori

AU - Ohno, Koichi

PY - 2005/7/10

Y1 - 2005/7/10

N2 - We have examined chemical reactions of small silicon cluster ions Si n+ for n = 7-16 with polar organic molecules M (M = CH3CN, CD3OD, C2H5CN, and C 2H5OH). The intensities of the adsorption products Si nMm+ for m = 1 and 2 were investigated as a function of n. We found for all polar molecules that the relative intensity of SinM+ to the unreacted Sin+ is smaller for n = 11, 13, and 14, that is, the adsorption reactivity is smaller for these n than others. It was also commonly observed that the SigM 2+ ion are more intense than neighboring n. We discussed the relationship of the reactivity with the geometrical structures and the stabilities of the bare Sin+ ions and adsorbed Si n(CH3CN)m+ ions, from theoretical calculations based on density functional theory.

AB - We have examined chemical reactions of small silicon cluster ions Si n+ for n = 7-16 with polar organic molecules M (M = CH3CN, CD3OD, C2H5CN, and C 2H5OH). The intensities of the adsorption products Si nMm+ for m = 1 and 2 were investigated as a function of n. We found for all polar molecules that the relative intensity of SinM+ to the unreacted Sin+ is smaller for n = 11, 13, and 14, that is, the adsorption reactivity is smaller for these n than others. It was also commonly observed that the SigM 2+ ion are more intense than neighboring n. We discussed the relationship of the reactivity with the geometrical structures and the stabilities of the bare Sin+ ions and adsorbed Si n(CH3CN)m+ ions, from theoretical calculations based on density functional theory.

KW - Adsorption reaction

KW - Cluster ion

KW - Silicon

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U2 - 10.1142/S0217979205031225

DO - 10.1142/S0217979205031225

M3 - Article

AN - SCOPUS:23944486727

VL - 19

SP - 2502

EP - 2507

JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

SN - 0217-9792

IS - 15-17

ER -