2024-03-29T15:09:11Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:02003770
2023-06-05T04:10:39Z
320:321:322
5-Thiaporphyrinium cation: effect of sulphur incorporation on excited state dynamics
Takiguchi, Asahi
Inai, Naoto
Kang, Seongsoo
Hagai, Masaya
Lee, Seokwon
Yanai, Takeshi
Kim, Dongho
Shinokubo, Hiroshi
We synthesised thionium-ion embedded aromatic porphyrinoids: a free-base 5-thiaporphyrinium cation and its zinc complex. The sulphur atom effectively participates in the macrocyclic π-conjugation. Fluorescence quantum yields of thiaporphyrinium cations were lower than 1% unlike oxaporphyrinium cations. Detailed photophysical analysis and DFT calculations clarified the vibrational mode regarding the out-of-plane motion of the sulphur atom induced ultrafast quenching of the excited state in comparison to the corresponding oxaporphyrinium cations.
journal article
Royal Society of Chemistry
2022-05-18
application/pdf
Chemical Communications
40
58
5956
5959
1359-7345
https://nagoya.repo.nii.ac.jp/record/2003770/files/OETP_09_revise.pdf
eng
https://doi.org/10.1039/D2CC00522K