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Based on an analysis of the 1 H NMR, FT-IR, UV–vis spectra, a chiral trimeric phenylene vinylene derivative (ChTPV) synthesized by a Wittig reaction was determined to have a trans–cis configuration, and it could be isomerized to the trans–trans isomer when treated with iodine. The melting point of ChTPV with a trans–trans configuration increased by 162.1°C compared to the trans–cis isomer,...
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