可光开关的富电子膦：利用光来调节膦的给电子能力。
Photoswitchable electron-rich phosphines: using light to modulate the electron-donating ability of phosphines.
作者信息
Buß Florenz, Das Mowpriya, Janssen-Müller Daniel, Sietmann Alexander, Das Ankita, Wilm Lukas F B, Freitag Matthias, Seidl Michael, Glorius Frank, Dielmann Fabian
机构信息
Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 30, Münster 48149, Germany.
Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, Münster 48149, Germany.
出版信息
Chem Commun (Camb). 2023 Oct 5;59(80):12019-12022. doi: 10.1039/d3cc04050j.
The synthesis and properties of photoswitchable electron-rich phosphines containing N-heterocyclic imines equipped with a photochromic dithienylethene unit are reported. Heteronuclear NMR spectroscopy and UV/vis studies reveal that the imine substituents undergo reversible electrocyclic ring-closing and ring-opening reactions upon exposure to UV and visible light, respectively. The photoisomerization alters the electron-donating ability of the phosphines by up to ΔTEP = 8 cm.
报道了含有配备光致变色二噻吩乙烯单元的N-杂环亚胺的光开关富电子膦的合成及性质。异核核磁共振光谱和紫外/可见光谱研究表明，亚胺取代基分别在紫外光和可见光照射下发生可逆的电环化闭环和开环反应。光异构化使膦的给电子能力改变高达ΔTEP = 8 cm。
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