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Issue 23, 2016
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Boron difluorides with formazanate ligands: redox-switchable fluorescent dyes with large stokes shifts

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Abstract

The synthesis of a series of (formazanate)boron difluorides and their 1-electron reduction products is described. The neutral compounds are fluorescent with large Stokes shifts. DFT calculations suggest that a large structural reorganization accompanies photoexictation and accounts for the large Stokes shift. Reduction of the neutral boron difluorides occurs at the ligand and generates the corresponding radical anions. These complexes are non-fluorescent, allowing switching of the emission by changing the ligand oxidation state.

Graphical abstract: Boron difluorides with formazanate ligands: redox-switchable fluorescent dyes with large stokes shifts

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Supplementary files

Article information


Submitted
30 Mar 2016
Accepted
10 May 2016
First published
10 May 2016

This article is Open Access

Dalton Trans., 2016,45, 9477-9484
Article type
Paper

Boron difluorides with formazanate ligands: redox-switchable fluorescent dyes with large stokes shifts

M.-C. Chang, A. Chantzis, D. Jacquemin and E. Otten, Dalton Trans., 2016, 45, 9477
DOI: 10.1039/C6DT01226D

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