Luminescent chiral organoboron 8-aminoquinolate-coordination polymers

作者：Tokoro Yuichiro; Nagai Atsushi; Chujo Yoshiki^*

来源：Applied Organometallic Chemistry, 2010, 24(8): 563-568.

DOI：10.1002/aoc.1599

• boron
• conjugated polymer
• chirality
• amino acid
• photoluminescence

We have successfully synthesized optically active organoboron aminoquinolate-based coordination polymers bearing the chiral side chain derived from L-alanine, and studied their optical behavior by UV-vis and photoluminescence spectroscopies. Higher absolute quantum yields (Phi(F)) of the obtained polymers, measured by integrating sphere method, were observed with electron-withdrawing substituent (Phi(F) = 0.80) than with electron-donating substituent (Phi(F) = 0.52). The circular dichroism (CD) study in the mixed solvents of CHCl(3) and DMF showed that the secondary structures of the obtained polymers were stabilized by hydrogen-bonding interaction in the side chain. From concentration dependence on the CD spectra, the chirality of the obtained polymers originated from the nature of one molecule.

• 出版日期2010-8