Synthesis and characterization of NLO chromophore with benzo [1,2-b:4,5-b′]dithiophene unit as π-electron bridge
✍ Scribed by Peng Si; Jialei Liu; Zhen Zhen; Xinhou Liu; G. Lakshminarayana; I.V. Kityk
- Book ID
- 113930836
- Publisher
- Elsevier Science
- Year
- 2012
- Tongue
- French
- Weight
- 390 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0040-4039
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## Abstract Two new donor/acceptor copolymers PBDTPhBT1 and PBDTPhBT2 with alternating benzodithiophene (BDT) and bisthiophene‐phthalimide (PhBT) units were synthesized by Stille coupling reaction. The copolymers showed identical optical bandgaps of 1.98 eV. The HOMO energy levels are −5.35 and −5.
## Abstract π‐Conjugated polymers composed of dialkoxybenzo[1,2‐b:4,5‐b′]dithiophene and thiophenes bearing cyano‐alkoxycarbonylethenyl [CHC(CO~2~R)CN] and bis(alkoxycarbonyl)ethenyl groups [CHC(CO~2~R)~2~] were prepared. The optical properties of the obtained polymers were investigated by UV‐v