Oxidation Triggered Supramolecular Chirality DOI
Jie Zhang,

Aiyou Hao,

Pengyao Xing

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

Topochemical reactions normally occurring in the solid and crystalline state exhibit solvent-free catalyst-free properties, with high atom economy which have been widely applied materials science polymer synthesis. Herein, we explore potential of topochemical for controlling emergence supramolecular chirality precise fabrication chiroptical materials. Boronic acid pinacol esters (BPin) were conjugated to naphthalimides containing an inherent chiral cholesteryl group linked by alkyl or benzene spacers. The BPin segments oxidized H2O2 form hydroxyl groups, enhanced luminescence, reduced steric effects, increased amphiphilicity. liposomal aggregates underwent situ oxidation transformed into 1D nanoarchitectures, exhibiting macroscopic chirality, active Cotton circularly polarized luminescence. Oxidation could also initiate intimate interplay between building units guest molecule, evolution multiple component assembly system realized.

Language: Английский

Physical strategies to engineer supramolecular composite hydrogels for advanced biomedical applications DOI

Sravan Baddi,

Auphedeous Y. Dang-i,

Fengli Gao

et al.

Progress in Materials Science, Journal Year: 2025, Volume and Issue: 151, P. 101428 - 101428

Published: Jan. 9, 2025

Language: Английский

Citations

1
Multiple‐State Control over Supramolecular Chirality through Dynamic Chemistry Mediated Molecular Engineering DOI
Zhuoer Wang,

Xufeng Xie,

Aiyou Hao

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(32)

Published: May 17, 2024

Abstract Dynamic chemistry utilizing both covalent and noncovalent bonds provides valid protocols in manipulating properties of self‐assemblies functions. Here we employ dynamic to realize multiple‐route control over supramolecular chirality up five states. N‐protected fluorinated phenylalanine the carboxylate state self‐assembled into achiral nanoparticles ascribed amphiphilicity. Protonation promoted one‐dimensional growth helices with shrunk hydrophilicity, which presence disulfide pyridine undergo inversion by hydrogen bonding‐directed coassembly. Further interacting water‐soluble reductant cleavages bond initiate rearrangement coassemblies a as well. Finally, tuning pH environments, aromatic nucleophilic substitution reaction between reduced products perfluorinated occurs, giving distinct chiral nanoarchitectures emerged luminescence circularly polarized luminescence. We thus realized particular five‐state combining at one compound, greatly enriches toolbox fabricating responsive chiroptical materials.

Language: Английский

Citations

4
Supramolecular gels: a versatile crystallization toolbox DOI Creative Commons
Rafael Contreras‐Montoya, Luı́s Álvarez de Cienfuegos, J.A. Gavira

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Supramolecular gels are unique materials formed through the self-assembly of low molecular weight gelators (LMWGs). Their versatility has allowed expansion gel crystallization processes, giving a new impetus to this field.

Language: Английский

Citations

4
Hanle spin precession induced inverted magnetoresistance in chiral/semiconductor systems DOI Creative Commons
Sytze H. Tirion, B. J. van Wees

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(3)

Published: Jan. 20, 2025

In the past decade, chiral materials have drawn significant attention because it is widely claimed that they can act as spin injectors/detectors due to chirality-induced selectivity effect. Nevertheless, microscopic origin of this effect not understood, which generates need for transport experiments confirm spin-dependent in materials. Hanle precession measurements unambiguously prove injection and detection a accumulation non-magnetic material, was shown with traditional ferromagnetic injectors/detectors. Here, we model analyze detail precession-induced magnetoresistance chiral/semiconductor systems find signal inverted compared case. We explicitly by both system system, well semiconductor, general set (spin) parameters cover relevant experimental regime. For all sets parameters, signals ferromagnet are each other's opposites. also discuss implications four terminal nonlocal separate injector detectors.

Language: Английский

Citations

0
Chirality-Induced Spin Selectivity in Composite Materials: A Device Perspective DOI Creative Commons
Seyedamin Firouzeh, Md Anik Hossain, Juan M. Cuerva

et al.

Accounts of Chemical Research, Journal Year: 2024, Volume and Issue: 57(10), P. 1478 - 1487

Published: April 30, 2024

ConspectusMagnetism is an area of immense fundamental and technological importance. At the atomic level, magnetism originates from electron "spin". The field nanospintronics (or nanoscale spin-based electronics) aims to control spins in systems, which has resulted astronomical improvement data storage magnetic sensing technologies over past few decades, recognized by 2007 Nobel Prize Physics. Spins solid-state devices can also act as quantum bits or qubits for emerging technologies, such computing sensing.Due connection between spins, ferromagnets play a key role many spintronic devices. This because at Fermi density states spin-polarized, permits electrical injectors detectors spins. Ferromagnets, however, have limitations terms low spin polarization stray fields, crosstalk, thermal instability nanoscale. Therefore, new physics materials are needed propel device true limit. Emerging phenomena chirality induced selectivity CISS, intriguing correlation carrier medium observed, could therefore be instrumental nanospintronics. effect allow molecular-scale, controlled injection detection without need any ferromagnet, thus opening fundamentally direction spintronics.While CISS finds myriad applications diverse areas chiral separation, recognition, detection, asymmetric catalysis, this focused Account, we exclusively review results due its potential future spintronics. first generation CISS-based primarily used bioorganic molecules; practical these been identified. our discussion revolves around family composite materials, may emerge ideal platform their ability assimilate various desirable material properties on single platform. class extensively studied organic chemistry community discuss transfer mechanisms that identified, central CISS. Next, studies performed some materials. Emphasis given organic-carbon allotrope composites, authors Account several years. Interestingly, presence multiple signals hybrid systems sometimes differ those observed purely systems. Given sheer diversity so far limited only varieties, expected draw increased attention composites motivate further applications.

Language: Английский

Citations

3
Electronic states in one-dimensional helical crystals: General properties and application to InSeI DOI
Jiaming Hu, Shu Zhao, Wenbin Li

et al.

Physical review. B./Physical review. B, Journal Year: 2024, Volume and Issue: 109(19)

Published: May 20, 2024

In this paper, we systematically explore several key properties of electronic states in one-dimensional (1D) helical crystals, including the inheritance orbital angular momentum from local atomic orbitals to entire structure, momentum, and emergence helical-induced spin-orbit coupling (hSOC). We then apply comprehensive theoretical framework elucidate structure 1D crystal InSeI. Our analysis reveals influence hSOC, evident spin-mixing energy gaps within band as calculated through density functional theory. Utilizing a combination tight-binding modeling first-principles calculations, ascertain spin-polarized electric response chiral-switchable second-order photocurrent InSeI, characterized Landauer-Buttiker ballistic transport shift current response, respectively. The results highlight potential InSeI for applications spintronics optoelectronics. overarching established work will prove invaluable investigation other systems.

Language: Английский

Citations

3
Homochiral Covalent Organic Frameworks with Superhelical Nanostructures Enable Efficient Chirality‐Induced Spin Selectivity DOI
Bang Hou, Kaixuan Wang, Chao Jiang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(51)

Published: Aug. 24, 2024

Abstract Despite significant advancements in fabricating covalent organic frameworks (COFs) with diverse morphologies, creating COFs superhelical nanostructures remains challenging. We report here the controlled synthesis of homochiral COF nanofibers by manipulating pendent alkyl chain lengths linkers. This approach yields 3D 13‐OR a 10‐fold interpenetrated diamondoid structure (R=H, Me, Et, n Pr, Bu) from enantiopure 1,1′‐bi‐2‐naphthol (BINOL)‐based tetraaldehydes and tetraamine. COF‐13‐OEt exhibits macroscopic chirality as right‐handed left‐handed fibers, whereas others adopt spherical or non‐helical morphologies. Time‐tracking shows self‐assembly process strands to single‐stranded helical fibers intertwined superhelices. Ethoxyl substituents, being optimal size, balance solvophobic effects intermolecular interactions, driving formation nanostructures, handedness determined BINOL chirality. The nature these materials is evident their chiral recognition spin‐filter properties, showing significantly improved enantiodiscrimination carbohydrate binding (up six times higher enantioselectivity) remarkable chiral‐induced spin selectivity (CISS) effect 48–51 % polarization ratio, feature absent analogs.

Language: Английский

Citations

2
Interpretable machine learning for chiral induced symmetry breaking of spin density boosting hydrogen evolution DOI

Xin Song,

Zhonghua Li, Sheng Li

et al.

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 103, P. 68 - 78

Published: Dec. 11, 2024

Language: Английский

Citations

2
Multiple‐State Control over Supramolecular Chirality through Dynamic Chemistry Mediated Molecular Engineering DOI
Zhuoer Wang,

Xufeng Xie,

Aiyou Hao

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(32)

Published: May 17, 2024

Abstract Dynamic chemistry utilizing both covalent and noncovalent bonds provides valid protocols in manipulating properties of self‐assemblies functions. Here we employ dynamic to realize multiple‐route control over supramolecular chirality up five states. N‐protected fluorinated phenylalanine the carboxylate state self‐assembled into achiral nanoparticles ascribed amphiphilicity. Protonation promoted one‐dimensional growth helices with shrunk hydrophilicity, which presence disulfide pyridine undergo inversion by hydrogen bonding‐directed coassembly. Further interacting water‐soluble reductant cleavages bond initiate rearrangement coassemblies a as well. Finally, tuning pH environments, aromatic nucleophilic substitution reaction between reduced products perfluorinated occurs, giving distinct chiral nanoarchitectures emerged luminescence circularly polarized luminescence. We thus realized particular five‐state combining at one compound, greatly enriches toolbox fabricating responsive chiroptical materials.

Language: Английский

Citations

2
When porphyrins meet 2D materials: spectroscopic and photocatalytic properties DOI Creative Commons
A. Lindner, Aleksandra Lesniewicz, Aleksander Kolman

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(25), P. 9012 - 9067

Published: Jan. 1, 2024

Exploring the fundamental understanding of structure–property–performance relationship porphyrins functionalized with 2D materials.

Language: Английский

Citations

1