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Novel Bisthienylethene‐Based Photochromic Tetraazaporphyrin with Photoregulating Luminescence
Author(s) -
Tian H.,
Chen B.,
Tu H.Y.,
Müllen K.
Publication year - 2002
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(20020618)14:12<918::aid-adma918>3.0.co;2-y
Subject(s) - photochromism , materials science , chromophore , luminescence , quantum yield , yield (engineering) , molecule , optoelectronics , photochemistry , small molecule , nanotechnology , optics , fluorescence , physics , organic chemistry , chemistry , biochemistry , metallurgy
A “hybrid photochromic” molecule with intertwined tetraazaporphyrin and bisthienylethene (BTE) chromophores is presented. The key photo‐process is the simultaneous cyclization of two BTE units (yielding the molecule shown in the Figure) with high quantum yield at RT, and with a strongly temperature‐dependent yield for the reverse reaction. The molecule is, thus, an ideal candidate for non‐ destructive readout optical memory devices.