《Photophysical and electrochemical properties of two trans-A2B-corroles: differences between phenyl or pyrenyl groups at the meso-10 position》 was written by Acunha, Thiago V.; Victoria, Henrique F. V.; Krambrock, Klaus; Marques, Amanda C.; Costa, Luiz Antonio S.; Iglesias, Bernardo A.. Quality Control of 1,3-Diphenylisobenzofuran And the article was included in Physical Chemistry Chemical Physics in 2020. The article conveys some information:
The present study reported on the optical and photophys. properties of trans-A2B-corroles possessing pyrenyl units attached at the meso-10-position and compares them with those of model trans-A2B-corroles having Ph substituents at that position. In contrast to the model meso-substituted corrole, the new pyrenyl-corrole showed slightly red-shifted absorption bands and blue-shifted emission, slightly higher fluorescence quantum yield, and more importantly, it showed better photo-stability under white-light illumination. Theor. calculations were used to determine the electronic transitions and geometries of the singlet and triplet excited states (TD-DFT and NTO). Moreover, we demonstrated that the pyrenyl-corrole in analogy to previously studied model corroles was able to generate reactive oxygen species (ROS) under visible light using photo-degradation of 1,3-diphenylisobenzofuran (DBPF), a singlet oxygen quencher, and EPR spectroscopy allied with the spin-trapping method was used for identifying singlet oxygen species. The results showed that the pyrenyl unit attached at the meso-10-position of the corrole increased the photo-stability and efficiency in ROS generation compared to the Ph substituent.1,3-Diphenylisobenzofuran(cas: 5471-63-6Quality Control of 1,3-Diphenylisobenzofuran) was used in this study.
1,3-Diphenylisobenzofuran(cas: 5471-63-6) can be used as a fluorescent probe for detection of superoxide anion radical (O2−) inside the membrane lipid layer by DPBF fluorescence quenching method. 1,3-Diphenylisobenzofuran(DPBF) can be used as quencher during the photoinactivation of TA-3 mouse mammary carcinoma cells containing hematoporphyrin.Quality Control of 1,3-Diphenylisobenzofuran
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem