Reversal Circularly Polarized Luminescence of AIE-Active Chiral Binaphthyl Molecules from Solution to Aggregation

• Published in: Chemistry : a European journal Vol. 21; no. 38; pp. 13196 - 13200
• Main Authors: Sheng, Yuan, Shen, Dong, Zhang, Wenjie, Zhang, Hongxing, Zhu, Chengjian, Cheng, Yixiang
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 14.09.2015; WILEY‐VCH Verlag; Wiley; Wiley Subscription Services, Inc
• Subjects: 1,1′‐binaphthol; 1′-binaphthol; Agglomeration; aggregation-induced emission; Chemistry; Chemistry, Multidisciplinary; circular dichroism; Circularity; circularly polarized luminescence; configuration inversion; Dihedral angle; Emission; Luminescence; Physical Sciences; Science & Technology; configuration inversion; circular dichroism; circularly polarized luminescence; 1-binaphthol; DENSITY; 1; INDUCED EMISSION; SPECTROSCOPY; AXIAL CHIRALITY; DICHROISM; aggregation-induced emission; ENERGY-TRANSFER; LUMINOGEN; DERIVATIVES; 1,1′-binaphthol
• ISSN: 0947-6539; 1521-3765
• DOI: 10.1002/chem.201502193

Four aggregation‐induced emission (AIE)‐active chiral binaphthyl‐based molecules, (R/S)‐1 and (R/S)‐2, were designed and synthesized. Interestingly, all of them can exhibit reversal circularly polarized luminescence (CPL) signals from solution to aggregation, which could be attributed to the different dihedral angle of binaphthyl units from cis‐conformation in pure THF solution to trans‐conformation in THF/water mixtures. The closing scene: Four aggregation‐ induced emission (AIE)‐active chiral binaphthyl‐based molecules, (R/S)‐1 and (R/S)‐2, were designed and synthesized. Interestingly, all of them can exhibit reversal circularly polarized luminescence (CPL) signals from solution to aggregation, which could be attributed to the different dihedral angle of binaphthyl units from cis‐conformation in pure THF solution to trans‐conformation in THF/water mixtures.