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The 1,1’-binaphthol based oligomers 3 and 7 with 3, 3’-acetylene-phenylene-acetylene spacer were prepared fromBINOL 1. The high optical rotation value and CD spectra demonstrated the main chain chirality of the oligomer molecule.The UV-VIS and fluorescent spectra evidence the characteristics of conjugated structure. In comparison with oligomer 2bearing 3,3’-acetylene spacer, the oligomers 3 and 7 have longer efficient conjugation segment, and their fluorescent quantumyields (φ) increased (0.60-0.65 versus 0.14). Extending the effective conjugation segment would improve the photophysicalproperties of chiral conjugated polymers.
The 1,1’-binaphthol based oligomers 3 and 7 with 3, 3’-acetylene-phenylene-acetylene spacer were prepared from BINOL 1. The high optical rotation value and CD spectra demonstrated the main chain chirality of the oligomer molecule. The UV- In contrast to oligomer 2bearing 3,3’-acetylene spacer, the oligomers 3 and 7 have longer efficient conjugation segments, and their fluorescent quantum fields (φ) increased (0.60-0.65 versus 0.14) Extending the effective conjugation segment would improve the photophysical properties of chiral conjugated polymers.