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

نویسندگان

  • Won-Young Cha
  • Jong Min Lim
  • Kyu Hyung Park
  • Masaaki Kitano
  • Atsuhiro Osuka
  • Dongho Kim
چکیده

Photoinduced twisted intramolecular charge transfer (TICT) of meso-(4-dimethylamino)phenylamino subporphyrin and meso-(4-nitro)phenylamino subporphyrin has been revealed by steady-state and time-resolved absorption/fluorescence experiments and quantum calculations. Subporphyrins and 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.

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عنوان ژورنال:
  • Chemical communications

دوره 50 62  شماره 

صفحات  -

تاریخ انتشار 2014