Dynamic Solvation Effects in I^-_2(CO_2)_n Impact onto Solid Surface : Wedge and Cage Effects

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概要

• 論文の詳細を見る

• Novel mechanisms were found to operate in dissociation of I^-_2 embedded in a CO_2 cluster, I^-_2(CO_2)_n, by its impact onto a silicon surface. The bond of I^-_2 is split by a CO_2 molecule located halfway between the two iodine atoms in the parent I^-_2(CO_2)_n, as if the CO_2 molecule behaves as a molecular 'wedge' (wedge effect). On the other hand, the dissociation of I^-_2 is suppressed when it is caged in a complete CO_2 molecular shell (cage effect). The wedge effect was also demonstrated by a molecular-dynamics simulation. By measuring the surface-parallel component of the translational energy of the I^-_2 and I^- product anions, it was concluded that a 'quasi-equilibrium' was established on the surface before the product anions leave from it. The translational-energy distribution of the product anions also shows the cage effect.I^-_2(CO_2)_ncluster impactsilicon surfacewedge effectcage effecttranslational-energy distributionquasi-equilibrium

• 東北大学の論文
• 1996-03-22

著者

• Kondow Tamotsu

  The Institute Of Physical And Chemical Research (riken):department Of Chemistry School Of Science Th

• Kondow Tamotsu

  The Institute For Solid State Physics The University Of Tokyo

• Koizumi Shin'ichi

  The Institute Of Physical And Chemical Research (riken):department Of Chemistry School Of Science Th

• Yasumatsu Hisato

  The Institute of Physical and Chemical Research (RIKEN)

• Terasaki Akira

  The Institute of Physical and Chemical Research (RIKEN)

• Terasaki Akira

  The Institute Of Physical And Chemical Research (riken):department Of Chemistry School Of Science Th

• Yasumatsu H

  Genesis Res. Inst. Inc. Chiba

関連論文

• Dynamic Solvation Effects in I^-_2(CO_2)_n Impact onto Solid Surface : Wedge and Cage Effects
• Far-Infrared Spectra of TCNQ Complexes : Their Electronic Structures

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