Intrinsically Switchable Electroactive Fluorophores Based on λ5 -Biphosphinines.
Chemistry
; 29(41): e202301165, 2023 Jul 20.
Article
em En
| MEDLINE
| ID: mdl-37161847
ABSTRACT
The synthesis and full characterization of a family of stable λ5 -biphosphinines connected in 4,4-position through a variety of π-conjugated bridges is reported. The impact of the π-bridge on the optical (absorption/emission) and redox properties was investigated using a joint experimental/theoretical approach. In contrast to the π-extended ones, the λ5 -biphosphinines directly connected through a C-C bond in 4,4-position display two easily accessible and reversible oxidations highlighting their multi-stage redox character. The inâ
situ formed radical cations are studied by spectro-electrochemistry and electron paramagnetic resonance. Finally, electrochemical modulation of fluorescence (electrofluorochromism) was performed and revealed the potential of these intrinsically switchable electroactive fluorophores for further applications as switchable materials.
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MEDLINE
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En
Ano de publicação:
2023
Tipo de documento:
Article