Related Experiment Video
Updated: Jul 11, 2025
09:34
Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
Published on: February 6, 2020
7.3K
Dynamically stable co-assembled supramolecular BOPPY systems with chiral amplification.
Yingzhu Sun1, Changjiang Yu1, Wanping Qian1
1The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China. yuchj@ahnu.edu.cn.
Chemical Communications (Cambridge, England)
|November 8, 2023
Summary
New chiral co-assembled systems were developed using BOPPY, showing amplified circularly polarized luminescence (CPL). These stable systems maintain uniform microrods and strong chiroptical performance even after 48 hours at high concentrations.
Area of Science:
- Supramolecular Chemistry
- Materials Science
- Photochemistry
Background:
- Chiral co-assembled systems are crucial for advanced optical applications.
- Developing stable chiral materials with tunable properties remains a challenge.
- Circularly polarized luminescence (CPL) is sensitive to molecular chirality and assembly structure.
Purpose of the Study:
- To develop novel dynamical chiral co-assembled systems.
- To investigate the chiroptical properties and stability of these new systems.
- To explore the potential of BOPPY-based assemblies in advanced optical materials.
Main Methods:
- Co-assembly of BOPPY-containing molecules.
- Characterization of self-assembled structures using microscopy.
- Spectroscopic analysis of chiroptical properties, including CPL.
- Stability studies under prolonged conditions.
Main Results:
- Successful development of new chiral co-assembled systems incorporating BOPPY.
- Amplified circularly polarized luminescence (CPL) signals were observed.
- The assemblies demonstrated remarkable stability, retaining uniform microrod structures.
- Exceptional chiroptical performance was maintained for 48 hours at high concentrations (g_lum = 0.028, Φ_F = 14%).
Conclusions:
- The developed BOPPY-based chiral co-assemblies offer a promising platform for advanced optical materials.
- The systems exhibit excellent stability and tunable chiroptical properties.
- These findings open new avenues for designing functional chiral supramolecular structures.
More Related Videos
Related Concept Videos
02:25Molecules with Multiple Chiral Centers
11.8K
Molecules that possess multiple chiral centers can afford a large number of stereoisomers. For instance, while some molecules like 2-butanol have one chiral center, defined as a tetrahedral carbon atom with four different substituents attached, several molecules like butane-2,3-diol have multiple chiral centers. A simple formula to predict the number of stereoisomers possible for a molecule with n chiral centers is 2n. However, there can be a lower number where some of the stereoisomers are...
11.8K
02:05Prochirality
3.8K
The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...
3.8K
02:30Chirality in Nature
13.5K
Chirality is the most intriguing yet essential facet of nature, governing life’s biochemical processes and precision. It can be observed from a snail shell pattern in a macroscopic world to an amino acid, the minutest building block of life. Most of the snails around the world have right-coiled shells because of the intrinsic chirality in their genes. All the amino acids present in the human body exist in an enantiomerically pure state, except for glycine - the sole achiral amino acid.
13.5K
02:30Chirality at Nitrogen, Phosphorus, and Sulfur
5.7K
Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
5.7K
02:52Stereoisomerism
12.0K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
12.0K
02:33Stereoisomerism of Cyclic Compounds
8.9K
In this lesson, we delve into the role of ring conformation and its stability, which determines the spatial arrangement and, consequently, the molecular symmetry and stereoisomerism of cyclic compounds. 1,2-Dimethylcyclohexane is used as a case study to evaluate the possible number of stereoisomers. Here, given the multiple (n = 2) chiral centers, there are 2n = 4 possible configurations that lack a plane of symmetry, as the ring skeleton exists in a non-planar chair conformation. In addition,...
8.9K