Photoionization of CH3I and determination of formation enthalpies, bond energies and proton affinities using synchrotron radiation

Acta Chimica Sinica ›› 1998, Vol. 56 ›› Issue (5): 459-464. Previous Articles Next Articles

Original Articles

CH3I同步辐射光电离及生成焓、键能和质子亲合势的测定

冉琴;裴林森;束继年;陈从香;俞书勤;马兴孝;武国华;盛六四;张允武

中国科学技术大学化学物理系;中国科学技术大学国家同步辐射实验室

发布日期:1998-05-15

Photoionization of CH3I and determination of formation enthalpies, bond energies and proton affinities using synchrotron radiation

RAN QIN;PEI LINSEN;SHU JINIAN;CHEN CONGXIANG;YU SHUQIN;MA XINGXIAO;WU GUOHUA;SHENG LIUSI;ZHANG YUNWU

Published:1998-05-15

Abstract

The photoionization and photodissociative ionization of CH3I have been investigated under the supersonic beam conditions by using synchrotron radiation. The appearance potentials (AP) of the ionic fragments from CH3I have been accurately determined. The standard formation enthalpies of the ions, bond energies D0 of the molecules or molecule ions, proton affinities PA0 of the radicals, and the dissociation energy De of parent ion have been evaluated. The most possible channels of VUV dissociation photoionization have been analyzed.

Key words: IODOMETHANE, PHOTOIONIZATION, SYNCHRONOUS RADIATION

CLC Number:

O644

Cite this article

RAN QIN;PEI LINSEN;SHU JINIAN;CHEN CONGXIANG;YU SHUQIN;MA XINGXIAO;WU GUOHUA;SHENG LIUSI;ZHANG YUNWU. Photoionization of CH3I and determination of formation enthalpies, bond energies and proton affinities using synchrotron radiation[J]. Acta Chimica Sinica, 1998, 56(5): 459-464.

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CH3I同步辐射光电离及生成焓、键能和质子亲合势的测定

Photoionization of CH3I and determination of formation enthalpies, bond energies and proton affinities using synchrotron radiation

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