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Photoswitchable electron-rich phosphines: using light to modulate the electron-donating ability of phosphines. | LitMetric
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Photoswitchable electron-rich phosphines: using light to modulate the electron-donating ability of phosphines.

Florenz Buß Mowpriya Das Daniel Janssen-Müller Alexander Sietmann Ankita Das Lukas F B Wilm Matthias Freitag Michael Seidl Frank Glorius Fabian Dielmann

Chem Commun (Camb)

Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 30, Münster 48149, Germany.

Published: October 2023

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.

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http://dx.doi.org/10.1039/d3cc04050jDOI Listing

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