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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Dexter electron transfer ： ウィキペディア英語版 Dexter electron transfer Dexter electron transfer (also called Dexter electron exchange and Dexter energy transfer) is a fluorescence quenching mechanism in which an excited electron is transferred from one molecule (a donor) to a second molecule (an acceptor) via a non radiative path. This process requires a wavefunction overlap between the donor and acceptor,〔(【引用サイトリンク】url=http://goldbook.iupac.org/D01654.html )〕 which means it can only occur at short distances; typically within 10 Å.〔(【引用サイトリンク】url=http://chemwiki.ucdavis.edu/Theoretical_Chemistry/Fundamentals/Dexter_Energy_Transfer )〕 The excited state may be exchanged in a single step, or in two separate charge exchange steps. The Dexter energy transfer rate, $k\_$, is indicated by the proportionality :$k\_\; \backslash varpropto\; J\; \backslash mathrm\backslash left\; (\backslash frac\; \backslash right)$ where $r$ is the separation of the donor from the acceptor, $L$ is the sum of the Van der Waals radii of the donor and the acceptor, and $J$ is the spectral overlap integral defined by :$J\; =\; \backslash int\; f\_(\backslash lambda)\; \backslash ,\; \backslash epsilon\_(\backslash lambda)\; \backslash ,\; \backslash lambda^4\; \backslash ,\; d\backslash lambda$ This short range energy transfer process was first theoretically proposed by D. L. Dexter in 1951. == See also == * Fluorescence * Quenching * Förster resonance energy transfer *Surface energy transfer 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dexter electron transfer」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.