Synthesis,structures, and photochromic properties of 3-[(<Emphasis Type="Italic">E</Emphasis>)-alk-1-enyl]-4-(1-alkyl-5-methoxy-2-methyl-1<Emphasis Type="Italic">H</Emphasis>-indol-3-yl)furan-2,5-diones |
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| Authors: | N I Makarova P V Levchenko V V Tkachev E N Shepelenko A V Metelitsa V P Rybalkin L L Popova V A Bren’ S M Aldoshin V I Minkin |
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| Institution: | 1.Institute of Physical and Organic Chemistry,Southern Federal University,Rostov-on-Don,Russian Federation;2.Institute of Problems of Chemical Physics,Russian Academy of Sciences,Chernogolovka, Moscow Region,Russian Federation;3.Southern Scientific Center of Russian Academy of Sciences,Rostov-on-Don,Russian Federation |
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| Abstract: | New hetarylethenes, viz., 3-(E)-alk-1-enyl]-4-(1-alkyl-5-methoxy-2-methyl-1H-indol-3-yl)furan-2,5-diones, exhibiting photochromic properties in solution were synthesized. The molecular and crystal structure
of 3-(5-methoxy-1,2-dimethyl-1H-indol-3-yl)-4-(E)-prop-1-enyl]furan-2,5-dione was determined by X-ray diffraction. The initial and photoinduced forms of hetarylethenes are
characterized by thermal stability. The open-ring isomers of furandiones exhibit fluorescence with quantum yields of up to
0.1. |
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