RT Journal Article
T1 Al(III) and Ga(III) Bisphenolate Azadipyrromethene-Based “N<sub>2</sub>O<sub>2</sub>” Complexes as Efficient NIR-Fluorophores
A1 Godard, Amélie
A1 Abad Galán, Laura
A1 Rouillon, Jean
A1 Al Shehimy, Shaymaa
A1 Tajani, Wassima
A1 Cave, Charlotte
A1 Malacea-Kabbara. Raluca, 
A1 Rousselin, Yoann
A1 Le Gendre, Pierre
A1 Fihey, Arnaud
A1 Bendellaa, Mohamed
A1 Busser, Benoit
A1 Sancey, Lucie
A1 Le Guennic, Boris
A1 Bucher, Christophe
A1 Maury, Olivier
A1 Goze, Christine
A1 Bodio, Ewen
AB Aza-boron-dipyrromethenes (Aza-BODIPYs) are an increasingly studied class of fluorophores. They can be seen as an azadipyrromethene (“aza-DIPY”) ligand rigidified by a metalloid, a boron atom. Based on this idea, a series of complexes of group 13 metals (aluminum and gallium) have been synthesized and characterized. The impact of the metal and of the nature of the substituents of aza-DIPY core were investigated. The photophysical and electrochemical properties were determined, and an X-ray structure of an azaGaDIPY was obtained. These data reveal that azaGaDIPY and azaAlDIPY exhibit significant red-shifted fluorescence compared to their analogue aza-BODIPY. Their emission can go up to 800 nm for the maximum emission length and up to NIR-II for the emission tail. This, associated with their electrochemical stability (no metal release whether oxidized or reduced) makes them a promising class of fluorophores for optical medical imaging. Moreover, X-ray structure and molecular modeling studies have shown that this redshift seems to be more due to the geometry around the boron/metal than to the nature of the metal.
PB American Chemical Society
SN 0020-1669
YR 2022
FD 2022-12-21
LK https://hdl.handle.net/20.500.14352/107236
UL https://hdl.handle.net/20.500.14352/107236
LA eng
NO Al(III) and Ga(III) Bisphenolate Azadipyrromethene-Based “N2O2” Complexes as Efficient NIR-Fluorophores. Amélie Godard, Laura Abad Galán, Jean Rouillon, Shaymaa Al Shehimy, Wassima Tajani, Charlotte Cave, Raluca Malacea-Kabbara, Yoann Rousselin, Pierre Le Gendre, Arnaud Fihey, Mohamed Bendellaa, Benoit Busser, Lucie Sancey, Boris Le Guennic, Christophe Bucher, Olivier Maury, Christine Goze, and Ewen Bodio. Inorganic Chemistry, 2023 62 (13), 5067-5080. DOI: 10.1021/acs.inorgchem.2c03918
DS Docta Complutense
RD 27 abr 2026