Related Experiment Video
Updated: Feb 17, 2026

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
Published on: February 7, 2017
Chirality Evolution in Supramolecular Polymers: Homochiral Aggregation and Temperature-Dependent Chirality Reversal.
Haotian Ma1, Zixiang He2, Qingping Song3
1State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou Industrial Park, Suzhou 215123, China.
Chiral triarylamine tris-amide (TATA) monomers exhibit homochiral aggregation and temperature-induced chirality reversal in supramolecular polymers. This study elucidates the mechanisms behind these intriguing chirality anomalies.
Area of Science:
- Supramolecular Chemistry
- Chirality Studies
- Polymer Science
Background:
- Chirality evolution in supramolecular polymers is complex.
- Understanding the mechanisms of chirality changes is challenging.
Purpose of the Study:
- Investigate supramolecular assembly of chiral C3 triarylamine tris-amide (TATA) monomers.
- Elucidate mechanisms of homochiral aggregation and temperature-induced chirality reversal.
Main Methods:
- Studied supramolecular assembly of TATA monomers.
- Utilized circular dichroism (CD) spectroscopy.
- Analyzed structural changes in binary solvent systems (DCE/hydrocarbon).
Main Results:
- Discovered simultaneous homochiral aggregation and temperature-induced chirality reversal.
- Identified parallel chromophore alignment causing positive Cotton effect.
- Observed temperature-dependent inversion of transition dipole moments in triarylamine moieties.
Conclusions:
- Internal triarylamine structures are crucial for chirality anomalies.
- Elucidated mechanisms of homochiral aggregation and chirality reversal.
- Provided insights into supramolecular chirality dynamics.
More Related Videos
Related Concept Videos
Chirality in Nature
Polymer Classification: Stereospecificity
Prochirality
Chirality
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
Molecules with Multiple Chiral Centers
Stereoisomerism of Cyclic Compounds

