Dialkoxy anthracenes

The synthesis and some aspects of the photochemistry and photophysics of a 2,6-dialkoxy-substituted anthracene SCLC polymer, 61, have been reported by... 

Fig. 30. Anthracene and anthraquinone derivatives are non-hydrogen-bonding gelators. In anthraquinone systems 2,3-dialkoxy derivatives such as 63 are found to be the most efficient...

Miscellaneous Photophysical Properties of PPEs. Wrighton has estimated the lifetime of the main emission band of dialkoxy-substituted PPEs (1) centered at 480 nm to be rn < 1 ns. If anthracene moieties are present, a second emission at 549 nm is observed, which has a lifetime of approximately 1 ns. This band is probably due to anthracene-localized emission in the solid state. Swager has determined the lifetimes of several dialkoxy-substituted PPEs. He finds lifetimes tn for the main emission band ranging from 0.64 to 1.88 ns. The lifetime is increased by meta linkages and decreased by the presence of acceptor substituents. The same authors reported the synthesis of porous PPEs 29 and 30a containing pentypticene moieties. These PPEs show regardless of the substituent pattern lifetimes of Tn 0.47—0.54 ns in solutions and a lifetime of 0.05—0.09 ns in the... 

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