meso-Free BIII Subporphyrins with Electron-donating Groups.

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ID: 101764
2020
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Abstract
meso-Free BIII 5,10-bis(p-dimethylaminophenyl)subporphyrins were synthesized. They display red-shifted absorption and fluorescence spectra, bathochromic behaviors in polar solvents, a high fluorescence quantum yield (ΦF = 0.57), and a small HOMO-LUMO gap mainly due to destabilized HOMO as compared with meso-free BIII 5,10-diphenylsubporphyrin. This subporphyrin serves as a nice precursor of various meso-substituted BIII subporphyrins such as BIIImeso-nitrosubporphyrin, BIIImeso-aminosubporphyrin, and meso-meso' linked BIII azosubporphyrin dimer. Reactions of meso-free BIII subporphyrins with NBS or bis(2,4,6-trimethylpyridine)bromonium hexafluorophosphate gave meso-meso' linked subporphyrin dimers often as a major product along with meso-bromosubporphyrins.
Reference Key
bekki2020mesofreechemistry Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Bekki, Yosuke;Osuka, Atsuhiro;
Journal Chemistry, an Asian journal
Year 2020
DOI
10.1002/asia.202000288
URL
Keywords
dimerization charge transfer excited state fluorescence: meso-free subporphyrin

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