Modulating the Lewis Acidity of Boron Using a Photoswitch | Zendy

Lemieux Vincent | Zendy; Spantulescu M. Daniel | Zendy; Baldridge Kim K. | Zendy; Branda Neil R. | Zendy

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Modulating the Lewis Acidity of Boron Using a Photoswitch

Author(s) -

Lemieux Vincent,

Spantulescu M. Daniel,

Baldridge Kim K.,

Branda Neil R.

Publication year - 2008

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200800869

Subject(s) - photoswitch , delocalized electron , lewis acids and bases , boron , electron , chemistry , photochemistry , organic chemistry , physics , quantum mechanics , catalysis

Light turns the Lewis acid on : The Lewis acidity of a boron atom integrated into a cyclic dithienylethene photoswitch is modulated by light: 1 a has low Lewis acidity since the p orbital of the boron center is partially occupied by delocalized π electrons, whereas the rearrangement of the π electrons in 1 b reduces the electron density at the boron center and turns the Lewis acid “on”.

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