Nickel‐2,2′‐Bipyridyl and Palladium‐Triphenylphosphine Complex Promoted Synthesis of New π‐Conjugated Poly(2‐hexylbenzotriazole)s and Characterization of the Polymers | Zendy

Tanimoto Akitoshi | Zendy; Yamamoto Takakazu | Zendy

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Nickel‐2,2′‐Bipyridyl and Palladium‐Triphenylphosphine Complex Promoted Synthesis of New π‐Conjugated Poly(2‐hexylbenzotriazole)s and Characterization of the Polymers

Author(s) -

Tanimoto Akitoshi,

Yamamoto Takakazu

Publication year - 2004

Publication title -

advanced synthesis and catalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.541

H-Index - 155

eISSN - 1615-4169

pISSN - 1615-4150

DOI - 10.1002/adsc.200404227

Subject(s) - triphenylphosphine , conjugated system , palladium , chemistry , nickel , polymer , condensation polymer , polymer chemistry , copolymer , quantum yield , yield (engineering) , photoluminescence , catalysis , organic chemistry , fluorescence , materials science , metallurgy , physics , optoelectronics , quantum mechanics

A nickel(0) complex (Ni‐bpy) promoted dehalogenative polycondensation of 4,7‐dibromo‐2‐hexylbenzotriazole gives the new π‐conjugated polymer, polybenzotriazole [P(BTz)]. Palladium‐triphenylphosphine [Pd(PPh 3 ) 4 ] catalyzed the copolymerization between 4,7‐dibromo‐2‐hexylbenzotriazole with 2,5‐diethynyl‐1,4‐dihexyloxybenzene and 9,9′‐dihexylfluorene‐2,7‐bis(trimethylene borate) to give the corresponding polymers P(BTz‐AE) and P(BTz‐F), respectively. The number average molecular weights, M n , of the polymers ranged from 3000 to 7400. P(BTz‐AE) showed a photoluminescence (PL) peak at 500 nm in CHCl 3 with a high quantum yield of PL (87%).

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