Pure cis and trans 1,3-substituted poly(propylenedioxythiophene)s PProDOTs have not been previously reported in the literature. Here, the pure stereoisomers are compared with varying the ratio of the two stereoisomers, systematically, to evaluate structure-property relationships as it pertains to visible absorption, color, and electrochemical redox potentials. A blue shift of approximately 90 nm in the visible lambda max is indicative that the trans 1,3-substituted PProDOT has disruption of conjugation based upon interactions with one of the substituents of the 7-membered ring.? Figure 1. <img src='https://acs-archive-assets2.s3.amazonaws.com/240nm/uploads/44302_acs_abstract_scheme.jpg' alt='' /> Figure 1. The UV-Vis spectrum of trans 1,3-ProDOT-iP2, racemic 1,3-ProDOT-iP2, and cis 1,3-ProDOT-iP2 that shows a 90 nm shift from cis to trans.

Importance of stereochemistry of 1,3-substituted poly(3,4-propylenedioxythiophene)s on optoelectronic properties

247th National Meeting (2014)

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