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Selective chemical bond breaking characteristically induced by resonant core excitation of ester compounds on a surface

https://hiroshima.repo.nii.ac.jp/records/2007506
https://hiroshima.repo.nii.ac.jp/records/2007506
8a31b6a7-bdd5-43a5-9728-939528f43ec7
名前 / ファイル ライセンス アクション
JPCM_18_s1629.pdf JPCM_18_s1629.pdf (1.1 MB)
Item type デフォルトアイテムタイプ_(フル)(1)
公開日 2023-03-18
タイトル
タイトル Selective chemical bond breaking characteristically induced by resonant core excitation of ester compounds on a surface
言語 en
作成者 Wada, Shin-ichi

× Wada, Shin-ichi

en Wada, Shin-ichi

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Kizaki, Hiroyuki

× Kizaki, Hiroyuki

en Kizaki, Hiroyuki

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Matsumoto, Yoshihiro

× Matsumoto, Yoshihiro

en Matsumoto, Yoshihiro

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Sumii, Ryohei

× Sumii, Ryohei

en Sumii, Ryohei

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Tanaka, Kenichiro

× Tanaka, Kenichiro

en Tanaka, Kenichiro

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利情報
権利情報 Copyright (c) 2006 IOP Publishing Ltd.
主題
主題Scheme NDC
主題 420
内容記述
内容記述 Inner-shell excitation possesses an attractive potential to induce selective chemical bond breaking due to its special localization and atomic selectivity. This paper reviews our recent works about site-selective (or site-specific) photon stimulated desorption (PSD) of core-excited ester compounds, poly(methyl methacrylate) (PMMA) thin films, condensed methyl isobutyrate (MIB) multilayers, methyl ester terminated self-assembled monolayers (SAMs), partially deuterided SAMs and ethyl ester terminated SAMs. Exact selective bond breaking was observed for all molecular systems except for MIB multilayers: COO-R (R = CH3, C2H5) breaking in the O 1s(OR) excitations and CO-OR in the excitation. Such resonant excitations take place within the functional group locally and the initial memory of the excited site and its localization character is effectively conserved during the PSD process even after subsequent Auger decays and ionic dissociation/desorption. Variation of selectivity observed here indicates the importance of the molecular environment and the contribution of the indirect dissociation process due to statistical energy relaxation and x-ray-induced electron stimulated desorption. The obvious polarization dependence measured only for selectively desorbing ions also supports the above characteristics. Neutral fragments desorbing from core-excited PMMA follow the profile of the total electron yield spectrum but not the partial ion yield of corresponding ions. This result indicates that ionic dissociation locally promoted by Coulomb repulsion plays an important role to reveal site-selectivity in chemical reactions induced by core-level excitation.
言語 en
出版者
出版者 IOP
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
出版タイプ
出版タイプ AO
出版タイプResource http://purl.org/coar/version/c_b1a7d7d4d402bcce
関連情報
識別子タイプ DOI
関連識別子 10.1088/0953-8984/18/30/S13
関連情報
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 http://dx.doi.org/10.1088/0953-8984/18/30/S13
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0953-8984
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AA10672168
開始ページ
開始ページ S1629
書誌情報 Journal of Physics Condensed Matter
Journal of Physics Condensed Matter

巻 18, 号 30, p. S1629-S1653, 発行日 2006-08-02
旧ID 17101
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