Thieno[3,2-b]thiophene based-bridged BODIPY dimer: synthesis, e-chem, one- and two-photon photophysical properties DOI

Zhiyong Chai,

Tingting Gu,

Annaëlle Beau

et al.

Dalton Transactions, Journal Year: 2024, Volume and Issue: 54(2), P. 674 - 682

Published: Nov. 12, 2024

Four BODIPY dyes (6a-6d) with electron-donating or electron-withdrawing groups at the meso-position were synthesized by Sonogashira coupling reaction of 2,5-diethynylthieno[3,2-b]thiophene mono-iodo-BODIPY moieties. All compounds fully characterized 1H NMR and MALDI-TOF MS. Their photophysical electrochemical properties studied UV-visible absorption spectroscopy, steady-state time-resolved fluorescence two-photon excitation spectroscopy cyclic voltammetry. These conjugated exhibit interesting such as a high molar extinction coefficient, large Stokes shift cross section σ2.

Language: Английский

Strategic Modifications in Aza-BODIPYs: The Role of Ferrocene and Metal Coordination in Enhancing Absorptivity and Redox Behavior DOI
Nihal Deligönül

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 141801 - 141801

Published: Feb. 1, 2025

Language: Английский

Citations

0
N, O - Chelate Fluoroborane Dyes: Synthesis, Optical Properties in Dual Aggregate State DOI
Yangyang Liu, Debao Liu, Nuonuo Zhang

et al.

Journal of Fluorescence, Journal Year: 2025, Volume and Issue: unknown

Published: April 23, 2025

Language: Английский

Citations

0
Introducing of an Unexplored Aza-BODIPY Diradicaloids with 4-(2,6-Ditert-butyl)phenoxyl Radicals Located in 1,7-Positions of the Aza-BODIPY Core DOI

Morris Oyelowo,

Jacob W. Schaffner,

Towhidi Illius Jeaydi

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

We have prepared and characterized two diradicaloid systems 5a 5b that originated from the oxidation of a 1,7-(4-(2,6-di-tert-butyl)phenol)-substituted aza-BODIPY core. The diradicaloids were by large array experimental computational methods. diamagnetic closed-shell state was postulated as ground in solution solid-state with substantial thermal population originating both open-shell diradical triplet states observed at room temperature. Transient absorption spectroscopy indicates fast (<10 ps) excited deactivation pathways associated target compounds' character Variable-temperature 1H NMR spectra indicate solvent dependency 5b. could be stepwise reduced to mixed-valence radical-anion dianion upon consequent single-electron reductions. Similarly, deprotonated aza-BODIPYs can oxidized form. Both dianionic forms exhibit an intense NIR region. Density functional theory (DFT) time-dependent DFT calculations used explain transformations UV–Vis-NIR all compounds.

Language: Английский

Citations

2
Thieno[3,2-b]thiophene based-bridged BODIPY dimer: synthesis, e-chem, one- and two-photon photophysical properties DOI

Zhiyong Chai,

Tingting Gu,

Annaëlle Beau

et al.

Dalton Transactions, Journal Year: 2024, Volume and Issue: 54(2), P. 674 - 682

Published: Nov. 12, 2024

Four BODIPY dyes (6a-6d) with electron-donating or electron-withdrawing groups at the meso-position were synthesized by Sonogashira coupling reaction of 2,5-diethynylthieno[3,2-b]thiophene mono-iodo-BODIPY moieties. All compounds fully characterized 1H NMR and MALDI-TOF MS. Their photophysical electrochemical properties studied UV-visible absorption spectroscopy, steady-state time-resolved fluorescence two-photon excitation spectroscopy cyclic voltammetry. These conjugated exhibit interesting such as a high molar extinction coefficient, large Stokes shift cross section σ2.

Language: Английский

Citations

1