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Peer-reviewedCC BY-NC 4.0Dalton Transactions

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

  • M.-C. Chang
  • A. Chantzis
  • D. Jacquemin
  • E. Otten
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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.

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Cite

BibTeXRIS
BibTeX
@article{chang2026boron,
  title = {{Boron difluorides with formazanate ligands: redox-switchable fluorescent dyes with large stokes shifts}},
  author = {M.-C. Chang and A. Chantzis and D. Jacquemin and E. Otten},
  journal = {Dalton Transactions},
  year = {2026},
  month = oct,
  doi = {10.1039/c6dt01226d},
  url = {https://hal.science/hal-05804280v1},
  note = {CC BY-NC 4.0},
}
RIS
TY  - JOUR
TI  - Boron difluorides with formazanate ligands: redox-switchable fluorescent dyes with large stokes shifts
AU  - M.-C. Chang
AU  - A. Chantzis
AU  - D. Jacquemin
AU  - E. Otten
PY  - 2026
DA  - 2026/10/17
JO  - Dalton Transactions
DO  - 10.1039/c6dt01226d
UR  - https://hal.science/hal-05804280v1
AB  - 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.
SN  - 1477-9226
SN  - 1477-9234
ER  -