Polymer‐Based Circularly Polarized Luminescent Materials

Advanced Optical Materials, Journal Year: 2023, Volume and Issue: 11(6)

Published: Jan. 19, 2023

Abstract Chiral materials capable of generating circularly polarized luminescence (CPL) have gained rapidly growing research interest by virtue their peculiar photophysical characteristics and far‐reaching applications. Amongst various CPL materials, polymer‐based constituted an important class owing to abundant types, ease manufacture, high thermal stability, as well as, tunable properties. The present work reviews the latest advances in constructing which are classified based on interaction modes between chiral luminescent components, that is, covalent interaction, non‐covalent without interactions. newly emerging categories nonconventional fluorescence‐based room temperature phosphorescence, with thermally activated delayed fluorescence properties also presented. Typical applications emitters organic light‐emitting diodes, information security encryption, optical sensors further discussed. Additionally, current challenges future perspectives this field summarized. This review article is expected stimulate more unprecedented achievements derived from thus promoting practical

Language: Английский

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Chiral supramolecular polymers

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(21), P. 7524 - 7548

Published: Jan. 1, 2023

Within the field of supramolecular polymers, chiral polymers are an excellent benchmark to generate helical structures that can clarify origin homochirality in Nature or find out new exciting functionalities organic materials.

Language: Английский

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A molecular descriptor of intramolecular noncovalent interaction for regulating optoelectronic properties of organic semiconductors

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: May 1, 2023

Abstract In recent years, intramolecular noncovalent interaction has become an important means to modulate the optoelectronic performances of organic/polymeric semiconductors. However, it lacks a deep understanding and direct quantitative relationship among molecular geometric structure, strength interaction, properties in Herein, upon systematical theoretical calculations on 56 molecules with without interactions (X···Y, X = O, S, Se, Te; Y C, F, Cl), we reveal essence dependence its geometry. Importantly, descriptor S is established as function several basic parameters well characterize energy, which exhibits good inverse correlation reorganization energies photo-excited states or electron-pumped charged particular, experimental 1 H, 77 125 Te NMR, optical absorption emission spectra, single crystal structures eight compounds fully confirm predictions. This work provides simple interactions, significant for design property prediction.

Language: Английский

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Cyclodextrins as chiral selectors in capillary electrophoresis: Recent trends in mechanistic studies

TrAC Trends in Analytical Chemistry, Journal Year: 2023, Volume and Issue: 160, P. 116987 - 116987

Published: Feb. 15, 2023

Language: Английский

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Halogen bonds, chalcogen bonds, pnictogen bonds, tetrel bonds and other σ-hole interactions: a snapshot of current progress

Acta Crystallographica Section C Structural Chemistry, Journal Year: 2023, Volume and Issue: 79(6), P. 204 - 216

Published: May 15, 2023

We report here on the status of research halogen bonds and other σ-hole interactions involving p -block elements in Lewis acidic roles, such as chalcogen bonds, pnictogen tetrel bonds. A brief overview available literature this area is provided via a survey many review articles that address field. Our focus has been to collect together most published since 2013 provide an easy entry into extensive area. snapshot current by introduction virtual special issue compiled journal, comprising 11 entitled ` Halogen, chalcogen, bonds: structural chemistry beyond .'

Language: Английский

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Beyond conventional: Role of chiral metal–organic frameworks in asymmetric scenarios

Nano Today, Journal Year: 2024, Volume and Issue: 56, P. 102227 - 102227

Published: March 18, 2024

Language: Английский

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Conformational changes in polysaccharide-based chiral selectors induced by mobile phase composition: effects on enantioselective retention and enantiomer elution order reversal

Journal of Chromatography A, Journal Year: 2025, Volume and Issue: 1742, P. 465660 - 465660

Published: Jan. 7, 2025

Language: Английский

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Retention time prediction for chromatographic enantioseparation by quantile geometry-enhanced graph neural network

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: May 29, 2023

Abstract The enantioseparation of chiral molecules is a crucial and challenging task in the field experimental chemistry, often requiring extensive trial error with different settings. To overcome this challenge, here we show research framework that employs machine learning techniques to predict retention times enantiomers facilitate chromatographic enantioseparation. A documentary dataset molecular high-performance liquid chromatography (CMRT dataset) established handle challenge data acquisition. quantile geometry-enhanced graph neural network proposed learn structure-retention time relationship, which shows satisfactory predictive ability for enantiomers. domain knowledge incorporated into model achieve multi-column prediction, paves way prediction by calculating separation probability. works well facilitation, sheds light on application scene improves efficiency experimenters speed up scientific discovery.

Language: Английский

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Vibrational Circular Dichroism Spectroscopy of Chiral Molecular Crystals: Insights from Theory

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(41)

Published: April 18, 2023

Chirality is a curious phenomenon that appears in various forms. While the concept of molecular (RS-)chirality ubiquitous chemistry, there are also more intricate forms structural chirality. One them enantiomorphism crystals, especially describes lack mirror symmetry unit cell. Its relation to chirality not obvious, but still an open question, which can be addressed with chiroptical tools. Vibrational circular dichroism (VCD) denotes chiral infrared (IR) spectroscopy susceptible both, as well intermolecular space by means vibrational transitions. When carried out solid state, VCD delivers very rich set non-local contributions determined crystal packing and collective motion. Since its discovery 1970s, has become method choice for determination absolute configurations, applicability reaches beyond towards study different polymorphism. This brief review summarises theoretical concepts how computations solid-state shed light into intimate connection structure optical activity.

Language: Английский

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Chiral MOF Derived Wearable Logic Sensor for Intuitive Discrimination of Physiologically Active Enantiomer

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(38)

Published: June 3, 2023

Chiral sensors have attracted growing interest due to their application in health monitoring. However, rational design of wearable logic chiral remains a great challenge. In this work, dual responsive sensor RT@CDMOF is prepared through situ self-assembly γ-cyclodextrin metal-organic framework (CDMOF), rhodamine 6G hydrazide (RGH), and tetracyanovinylindane (TCN). The embedded RGH TCN inherit the chirality host CDMOF, producing changes both fluorescence reflectance. explored as channel for discrimination lactate enantiomers. Comprehensive mechanistic studies reveal binding process, carboxylate dissociation confirmed by impedance solid-state 1 H nuclear magnetic resonance (NMR). A flexible membrane successfully fabricated based on Practical evaluation confirms potential point-of-care monitoring indexing exercise intensity. Based above, IMPLICATION unit can be achieved, demonstrating promising assembly novel smart devices. This work may open new avenue applications.

Language: Английский

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