### Abstract

We have examined chemical reactions of small silicon cluster ions Si _{n}^{+} for n = 7-16 with polar organic molecules M (M = CH_{3}CN, CD_{3}OD, C_{2}H_{5}CN, and C _{2}H_{5}OH). The intensities of the adsorption products Si _{n}M_{m}^{+} for m = 1 and 2 were investigated as a function of n. We found for all polar molecules that the relative intensity of Si_{n}M^{+} to the unreacted Si_{n}^{+} 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 Si_{n}^{+} ions and adsorbed Si _{n}(CH_{3}CN)_{m}^{+} ions, from theoretical calculations based on density functional theory.

Original language | English |
---|---|

Pages (from-to) | 2502-2507 |

Number of pages | 6 |

Journal | International Journal of Modern Physics B |

Volume | 19 |

Issue number | 15-17 |

DOIs | |

Publication status | Published - 2005 Jul 10 |

Externally published | Yes |

### Fingerprint

### Keywords

- Adsorption reaction
- Cluster ion
- Silicon

### ASJC Scopus subject areas

- Physics and Astronomy (miscellaneous)
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
- Statistical and Nonlinear Physics
- Mathematical Physics

### Cite this

_{n}

^{+}cluster ions.

*International Journal of Modern Physics B*,

*19*(15-17), 2502-2507. https://doi.org/10.1142/S0217979205031225

**Adsorption reaction of polar organic molecules on Si _{n} ^{+} cluster ions.** / Nakagawara, Wakana; Tsunoyama, Hironori; Furuya, Ari; Misaizu, Fuminori; Ohno, Koichi.

Research output: Contribution to journal › Article

_{n}

^{+}cluster ions',

*International Journal of Modern Physics B*, vol. 19, no. 15-17, pp. 2502-2507. https://doi.org/10.1142/S0217979205031225

_{n}

^{+}cluster ions. International Journal of Modern Physics B. 2005 Jul 10;19(15-17):2502-2507. https://doi.org/10.1142/S0217979205031225

}

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

UR - http://www.scopus.com/inward/record.url?scp=23944486727&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=23944486727&partnerID=8YFLogxK

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 -