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A solution of 3‑hexylthiophene (10 mmol) and 2‑bromo‑2‑methoxy‑1,3‑dioxane (12 mmol) in dry THF (100 mL) was refluxed under nitrogen for 16 h. The reaction mixture was cooled, filtered, and the solvent removed under reduced pressure. The crude product was purified by column chromatography (silica, hexane/ethyl acetate = 9:1) to afford Monomer 1 (85 % yield). IPZZ-266
During cyclic voltammetry (0–1 V vs. Ag/AgCl) the Raman band at 1445 cm⁻¹ (C=C stretching of thiophene) shifted downfield by ~4 cm⁻¹ upon oxidation, confirming polaron formation on the backbone. Simultaneously, the imidazolium N‑C=N symmetric stretch (≈ 1170 cm⁻¹) displayed a reversible intensity modulation, indicative of ion‑pair re‑orientation that facilitates charge – Since this code is tied to a specific performer (e
Polymer A was obtained by coupling Monomer 1 (5 mmol) with 2,5‑bis(pinacolborane)‑3‑hexylthiophene (5 mmol) using Pd(OAc)₂ (0.05 mmol) and TFP (0.10 mmol) in a 1:1 mixture of THF/DMF (100 mL) with K₂CO₃ (10 mmol) as base. The reaction proceeded at 90 °C for 48 h under N₂. After work‑up and precipitation into methanol, Gel‑Permeation Chromatography (GPC, THF, polystyrene standards) indicated Mₙ = 28 kDa, Đ ≈ 1.12. The crude product was purified by column chromatography
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