Molecular packing structural transition driven handedness inversion of circularly polarized luminescence of phenothiazine substituted Phe–Phe dipeptides

Abstract

A phenothiazine group was attached to a pair of Phe-Phe homochiral dipeptides with different chirality. A structural transition from micelles to twisted nanoribbons with extending aging time was observed in...

Highly Efficient Wavelength‐Tunable Circularly Polarized Luminescence Film Constructed by Responsive Chiral Aggregation‐induced Emission Luminophore

“…[28][29][30] If the external environment changes, CPL materials not only show high g lum but also present different colors for wavelength adjustment, which can further greatly enrich their applications. [31][32][33] At present, the methods of constructing wavelength-tunable CPL materials generally include the following strategies: (a) adopting different color luminescent groups doped with chiral templates, (b) using chiral groups linked to stimulus-responsive conjugated luminescent groups by covalent bonding, and (c) employing chiral and stimulus-responsive luminescent molecules combing non-covalent bonding interactions, such as hydrogen bonding, electrostatic interactions, ππ stacking, ligand coordination, etc. [13,[34][35][36][37][38][39][40][41][42] The well-known electronegative pyridine is capable of protonation, allowing for changes in the energy level of the protonated state.…”

Non-Classical Circularly Polarized Luminescence Control of Peptide Luminophore Based on Precise Chiral Space Control

“…The authors expect that CPL can be more precisely controlled using solid-phase peptide synthesis to obtain peptides with well-defined structures. Some research groups that conducted studies on the peptide-based regulation of CPLs recently reported that they succeeded in generating CPL from achiral molecules incorporated into peptide assemblies and peptide-based assemblies [7][8][9][10][11][12][13][14][15]. These research groups used peptides of various sizes, from dipeptides to polymeric peptides, to form peptide aggregates.…”