Dichloro 1 3 bis diphenylphosphino propane nickel 2 ni dppp cl2

The 2,5-dibromo-3-hexylthiophene ≥ 97%, TCI (Tokyo, Japan), t-butylmagnesium chloride (2M ether solution) (Sigma Aldrich, St. Louis, MO, USA), dichloro-[1,3-bis(diphenylphosphino)propane]nickel(II) (Ni(dppp)Cl2) (≥97%, Sigma Aldrich), vinylmagnesium bromide (0.7 M solution in tetrahydrofuran, (Acros Organics Geel, Belgium), poly(methylhydrosiloxane) trimethylsilyl terminated (average M_n ~390—PMHS390—and 1700–3200—PMHS1700/3200, Sigma Aldrich), platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane (PTDD, Karstedt’s catalyst) (complex solution in xylene, Pt ~2%, Sigma Aldrich), poly(ethylene glycol) methyl ether methacrylate (PEG) (average Mn 500, Sigma Aldrich), anhydrous toluene (99.8%, Acros Organics) were used as received, without further purification. Anhydrous tetrahydrofuran (99.9%, Acros Organics) was distilled over metallic sodium prior to use. All reactions were conducted under dry nitrogen or argon flow, in oven-dried glassware.

3-hexylthiophene (TCI, ≥98%), 2,5-dibromo-3-hexylthiophene (TCI, ≥97%), t-butylmagnesium chloride (Sigma-Aldrich, 2 M ether solution), dichloro-[1,3-bis(diphenylphosphino)propane]nickel(II) (Ni(dppp)Cl₂) (Sigma-Aldrich, ≥97%) and anhydrous iron(III) chloride (Fisher Chemical, extra pure, SLR) were used as received, without further purification. Anhydrous tetrahydrofuran (ACROS Organics, 99.9%) was distilled over metallic sodium prior to use. All reactions were conducted under dry nitrogen or argon flow, in oven dried glassware.