Back to Search Start Over

Nature of Linear Spectral Properties and Fast Electronic Relaxations in Green Fluorescent Pyrrolo[3,4-c]Pyridine Derivative

Authors :
Nataliia V. Bashmakova
Yevgeniy O. Shaydyuk
Andriy M. Dmytruk
Tomasz Świergosz
Olexiy D. Kachkovsky
Kevin D. Belfield
Mykhailo V. Bondar
Wiktor Kasprzyk
Source :
International Journal of Molecular Sciences, Vol 22, Iss 11, p 5592 (2021)
Publication Year :
2021
Publisher :
MDPI AG, 2021.

Abstract

The electronic nature of 4-hydroxy-1H-pyrrolo[3,4-c]pyridine-1,3,6(2H,5H)-trione (HPPT) was comprehensively investigated in liquid media at room temperature using steady-state and time-resolved femtosecond transient absorption spectroscopic techniques. The analysis of the linear photophysical and photochemical parameters of HPPT, including steady-state absorption, fluorescence and excitation anisotropy spectra, along with the lifetimes of fluorescence emission and photodecomposition quantum yields, revealed the nature of its large Stokes shift, specific changes in the permanent dipole moments under electronic excitation, weak dipole transitions with partially anisotropic character, and high photostability. Transient absorption spectra of HPPT were obtained with femtosecond resolution and no characteristic solvate relaxation processes in protic (methanol) solvent were revealed. Efficient light amplification (gain) was observed in the fluorescence spectral range of HPPT, but no super-luminescence and lasing phenomena were detected. The electronic structure of HPPT was also analyzed with quantum-chemical calculations using a DFT/B3LYP method and good agreement with experimental data was shown. The development and investigation of new pyrrolo[3,4-c]pyridine derivatives are important due to their promising fluorescent properties and potential for use in physiological applications.

Details

Language :
English
ISSN :
14220067 and 16616596
Volume :
22
Issue :
11
Database :
Directory of Open Access Journals
Journal :
International Journal of Molecular Sciences
Publication Type :
Academic Journal
Accession number :
edsdoj.4685d30a71c1441f8202dec9789522f0
Document Type :
article
Full Text :
https://doi.org/10.3390/ijms22115592