Advances in electrochemistry of intrinsic conductive metal-organic frameworks and their composites: Mechanisms, synthesis and applications

Nano Energy, Journal Year: 2024, Volume and Issue: 122, P. 109333 - 109333

Published: Jan. 25, 2024

Language: Английский

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Construction of olefinic coordination polymer single crystal platforms: precise organic synthesis, in situ exploration of reaction mechanisms and beyond

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(10), P. 5227 - 5263

Published: Jan. 1, 2024

Olefinic coordination polymers were used as universal single crystal platforms for precise organic synthesis, in situ mechanism exploration and photochemical applications.

Language: Английский

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Stimuli-responsive coordination polymers toward next-generation smart materials and devices

eScience, Journal Year: 2024, Volume and Issue: 4(3), P. 100231 - 100231

Published: Jan. 21, 2024

Stimuli-responsive coordination polymers (CPs) are among one of the most prolific research areas in developing next-generation functional materials. Their capability being accurately excited by particular external changes with pre-determined and observable/characterizable behaviours correspond, so called "stimuli" "responsive". Abundant types CP compounds, especially metal-organic frameworks (MOFs), rocketing interest owing to their compositional diversity, structural tunability, essence highly engineerable functionality. This present review is aimed sketch several common stimulation corresponding responses for CPs, accompanied broad logic mechanisms underneath. And further from aspect material revolution, some representative progresses together latest advances CP-based materials various fields covered attempt display a broader picture towards possible prospects this topic.

Language: Английский

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The Use of Photocycloaddition Reactions to Drive Mechanical Motions Resembling Humanoid Movements

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(38)

Published: June 18, 2024

Abstract With the aim of producing a photomechanical material for incorporation in soft microrobots, one‐dimensional diene coordination polymer (CP) [Cd(F‐bpeb)(3‐CBA) 2 ] n ( CP1 , F‐bpeb=4,4′‐((1 E ,1′ )‐(2,5‐difluoro‐1,4‐phenylene)bis(ethene‐2,1‐diyl))dipyridine, 3‐HCBA=3‐chlorobenzoic acid) was synthesized and characterized. Irradiation with ultraviolet (UV) or visible light causes [2+2] photocycloaddition reactions resulting introduction crystal strain which triggers various types movements. Composite films ‐PVA (SC) fabricated by dispersing crystals into polyvinyl alcohol (PVA) solution allow amplification movement so that film strips exhibit fast flexible curling upon photoirradiation. The composite may be cut long rectangular folded to simulate microrobots variety fast, continuous movements resembling human performing gymnastic exercises.

Language: Английский

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[2 + 2] cycloaddition and its photomechanical effects on 1D coordination polymers with reversible amide bonds and coordination site regulation

Chemical Science, Journal Year: 2024, Volume and Issue: 15(11), P. 3971 - 3979

Published: Jan. 1, 2024

Photo-responsive materials can convert light energy into mechanical energy, with great application potential in biomedicine, flexible electronic devices, and bionic systems.

Language: Английский

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Chemoselectivity Inversion of Responsive Metal–Organic Frameworks by Particle Size Tuning in the Micrometer Regime

Small, Journal Year: 2024, Volume and Issue: 20(24)

Published: Jan. 15, 2024

Abstract Gated adsorption is one of the unique physical properties flexible metal–organic frameworks with high application potential in selective and sensing molecules. Despite recent studies that have provided some guidelines understanding designing structural flexibility for controlling gate opening by chemical modification secondary building units, currently, there no established strategy to design a MOF showing gated specific guest molecule. In present contribution it demonstrated first time, selectivity particular compound can be tuned, changed, even reversed using particle size engineering DUT‐8(Zn) ([Zn 2 (2,6‐ndc) (dabco)] n , 2,6‐ndc = 2,6‐naphthalenedicarboxylate, dabco 1,4‐diazabicyclo‐[2.2.2]‐octane, DUT Dresden University Technology) experiences phase transition from open ( op ) closed cp pore upon removal solvent pores. Microcrystals show reopening presence dichloromethane (DCM) over alcohols. Crystal downsizing micron unexpectedly reverses selectivity, causing its nanosized pores alcohols but suppressing responsivity toward DCM.

Language: Английский

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Macroscopic Twisting of Chiral Metal Halide Single Crystals Driven by Thermo-Induced Topochemical Dehydration

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(38), P. 26534 - 26542

Published: Sept. 10, 2024

Dynamic twisting crystals, combining the features of dynamic crystals and promise advanced applications in targeted drug delivery, biosensors, microrobots, spiral optoelectronics. However, determination with specific directions remains a formidable challenge practical applications. Herein, based on organic-inorganic hybrid metal halide (OIHMH) single we have realized chirality-induced macroscopic driven by thermo-induced topochemical dehydration reaction. These exhibit molecular-chirality-induced upon heating, along reversals their linear chiroptical circular dichroism nonlinear second harmonic generation dichroism. Such an induced has been attributed to alteration helical arrangement chiral cation post-topochemical dehydration. The feasibility tuning OIHMH switching properties might open up new avenues for developing microactuating optoelectronic

Language: Английский

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Chemical Pattern and Photoluminescence On–Off Changes in a Ladder-like MOF via Remarkable Thermal SCSC Transformation

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(3), P. 963 - 968

Published: Feb. 15, 2024

We herein report the thermal single-crystal-to-single-crystal (SCSC) transformation of a coordination polymer accompanying molecular level pattern changes and photoluminescence (PL) on–off behavior. Self-assembly multitopic olefin-armed NOS2-macrocycle L silver(I) trifluoroacetate gives rise to an orange emissive ladder-like (ladder-1) in Λ-V-Λ-V (where "Λ" is trapezoid "V" reverse trapezoid). Upon heating at 80 °C, surprisingly, ladder-1 undergoes drastic SCSC nonemissive ladder-2 with N-M-N-M "N" narrow rectangle "M" wide rectangle). A mechanistic pathway for conversion via bond-breaking/making pedal motion proposed. The PL behaviors are discussed based on structure–property relation. Consequently, multiple functions macrocycle work cooperatively communications satisfy conformational electronic conditions. This presents new perspective chemical network materials.

Language: Английский

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Bending, Twisting, and Propulsion of Photoreactive Crystals by Controlled Gas Release

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(22)

Published: March 26, 2024

The rapid release of gas by a chemical reaction to generate momentum is one the most fundamental ways elicit motion that could be used sustain and control motility objects. We report hollow crystals three-dimensional supramolecular metal complex releases photolysis can propel themselves or other objects advance in space when suspended mother solution. In needle-like regular crystals, occurs mainly on surface results formation cracks evolve due internal pressure; expansion cracked crystal bending, twisting, coiling crystal. accumulates inside their cavities emanates preferentially from recess at terminus, propelling undergo directional photomechanical through object which controlled externally perform work delineates concept "crystal microbots", realized photoreactive organic capable prolonged for actuation delivery. Within prospects, we envisage development plethora light-weight, efficient, autonomously operating robots based with high capacity where over large distances attained volume latent generated small crystalline solid.

Language: Английский

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Photoresponsive Coordination Polymer Single Crystal Platforms: Design and Applications

Accounts of Materials Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

ConspectusThe concept of photoresponsive coordination polymer (CP) single crystal platforms (CPSCPs) is based on olefin CP crystals, which can undergo photocycloaddition reactions under light irradiation through a single-crystal-to-single-crystal (SCSC) transformation. Taking advantage the ligands to metal ions Zn2+, Cd2+, etc., pair C═C double bonds positioned adjacent each other in space at suitable distance and orientation allow [2 + 2] triggered by UV–vis irradiation, affording cyclobutanes CPs. The nature CPs allows their structures be determined X-ray diffraction, providing details arrangements bonds. These are promising for synthesis organic molecules, such as derivatives, with high regioselectivity stereoselectivity without any catalyst. may induce structural modifications like expansion or shrinking unit cells, resulting macroscopic changes (e.g., cracking, bending, etc.) whole crystals leading chemical physical properties. Applications take optical properties, including luminescence absorption, detection guest molecules photomechanical motions. Although much effort has been devoted studies, it remains challenging develop systematic investigations aiming increasing diversity properties meet practical needs. Moreover, more efficient methods desirable investigate reaction mechanisms solid state monitor occurring during process.In this Account, we introduce our research design applications CPSCPs. It divided into three parts. First, construction various different discussed. Through sometimes sophisticated choice auxiliary carboxylate ligands, these requirements structures, allowing precise derivatives. compounds could subsequently extracted from give pure products. Second, new strategies, combination diffraction (SCXRD) thermal/phototreatments situ fluorescence spectroscopy, reaction. Furthermore, fast stepwise photoreaction also visualized resolution. data significantly strengthen understanding solid-state Third, described, focus photoinduced mechanical Considering conjugated change reactions, circular dichroism (CD) were used imaging. expanded polymers. Lastly, point out challenges directions future field. We hope Account will provide an overview CPSCPs, attract attention community, inspire research.

Language: Английский

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