HighTwo modes of photoinduced twisted intramolecular charge transfer in meso-arylaminated subporphyrins

Won Young Cha, Jong Min Lim, Kyu Hyung Park, Masaaki Kitano, Atsuhiro Osuka, Dongho Kim

Research output: Contribution to journalArticle

15 Citations (Scopus)


Photoinduced twisted intramolecular charge transfer (TICT) of meso-(4-dimethylamino)phenylamino subporphyrin 2 and meso-(4-nitro)phenylamino subporphyrin 3 has been revealed by steady-state and time-resolved absorption/fluorescence experiments and quantum calculations. Subporphyrins 2 and 3 undergo molecular twisting at the Cmeso–N bond and the N–Cipso bond, respectively, to trigger intramolecular charge separation, which is restricted at low temperature or in viscous paraffin oil with concurrent fluorescence recovery of local excited states.

Original languageEnglish
Pages (from-to)8491-8494
Number of pages4
JournalChemical Communications
Issue number62
Publication statusPublished - 2014 Jul 8


All Science Journal Classification (ASJC) codes

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this