Summary
The oxidation reaction of dithia[3.3]metacyclophane-containing π-conjugated polymer (3) was performed by the treatment with m-chloroperbenzoic acid (m-CPBA). The reaction proceeded smoothly to obtain the corresponding oxidized polymer (4), and all sulfur atoms of the dithia[3.3]metacyclophane unit were converted to the sulfone group according to the 1H, 13C NMR, and IR spectra. The rapid syn-[anti]-syn interconversion of the oxidized dithia[3.3]metacyclophane moieties in polymer (4) and dithia[3.3]metacyclophane moieties in polymer (3) occured in solution at room temperature. Polymer (4) exhibited a blue emission in the same region as polymer (3).
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Morisaki, Y., Ishida, T. & Chujo, Y. Oxidation of Dithia[3.3]metacyclophane-Containing Through-Space π-Conjugated Polymer. Polym. Bull. 57, 623–630 (2006). https://doi.org/10.1007/s00289-006-0622-3
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DOI: https://doi.org/10.1007/s00289-006-0622-3