FeCl3 -doped polyacetylene

The films could be doped with I2, FeCl3 or BF3 to conductivities of the order of 10 -3 S cm 1, much lower than polyacetylene. Spectroscopy suggested that the average length of the polyene sequence was around 10C = C units and the authors suggest that this is due to the random initiation of an unzipping reaction at many points on... 

Diphenylpolyenes have higher oxidation potentials than polyacetylene, which can be oxidized by I2. However, Spangler and co-workers found that diphenyl polyenes from = 4-8 can be oxidatively doped in CH2CI2 solution with either FeCl3 or SbCls [26-28]. In all cases an immediate bleaching of the original n—n transition was observed with the simultaneous appearance of new red-shifted bands which for the longer polyenes may be into the near infrared (NIR). In some... 

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