Recent progress in polyoxometalate–viologen photochromic hybrids: structural design, photochromic mechanism, and applications

Inorganic Chemistry Frontiers, Год журнала: 2023, Номер 10(7), С. 1965 - 1985

Опубликована: Янв. 1, 2023

Polyoxometalate–viologen hybrids are reviewed, including structural design, competing electron transfer process, and new knowledge on photochromic mechanisms their applications.

Язык: Английский

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Regulating the Topologies and Photoresponsive Properties of Lanthanum‐organic Frameworks

Chemistry - A European Journal, Год журнала: 2024, Номер 30(66)

Опубликована: Авг. 15, 2024

Abstract Metal‐organic frameworks (MOFs) show potential application in many domains, which photochromic MOFs (PMOFs) have received enormous attention. Researchers mainly utilize photoactive ligands to build PMOFs. Recently, the mixed electron donating and accepting strategies also been used construct PMOFs driven by transfer between nonphotochromic moieties. However, interligand competition inhibits formation of Therefore, exploration single‐ligand‐guided assembly is conductive for building Considering existing role pyridyl carboxyl, pyridinecarboxyate derived from fusion carboxyl units may serve as single ligand yield (Figure 1d). In this work, coordination bipyridinedicarboxylate (2,2′‐bipyridine‐4,4′‐dicarboxylic acid, H 2 bpdc; 1,10‐phenanthroline‐2,9‐dicarboxylic pda) LaCl 3 generate two PMOFs, [La(bpdc)(H O)Cl] ( 1 ) [La(pda)(H O) Cl]⋅2H O ). Both complexes feature dinuclear lanthanum blocks with differences connecting number likers, has (4,8)‐connected topology exhibits sql topology. Their structural result diversities photoresponsive functionalities. Compared reported built ligands, study provides new available categories generating tuning structure properties via substitution external photostimulus.

Язык: Английский

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

eScience, Год журнала: 2024, Номер 4(3), С. 100231 - 100231

Опубликована: Янв. 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.

Язык: Английский

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A Multistimuli-Responsive Cd-MOF Constructed by an Extended Viologen-Based Carboxylate Ligand

Crystal Growth & Design, Год журнала: 2024, Номер 24(8), С. 3299 - 3308

Опубликована: Март 30, 2024

Multistimuli-responsive crystalline materials have a wide range of application prospects. However, development new multistimuli-responsive remains full challenge. In this work, taking symmetrical modified extended viologen (ExV)-based carboxylate 1,1-bis(4-carboxybenzyl)-2,5-bipyridyl thiophene dichloride (H2L·Cl2) as ligand and terephthalic acid (PTA) an auxiliary ligand, 3D MOF material {[Cd2(L)(PTA)2]·3H2O}n (Cd-MOF-1) was constructed successfully. Cd-MOF-1 shows distinctive photochromic electrochromic properties, which can be attributed to the formation radicals induced by electron transfer (ET) under external photo/electricity stimuli. Furthermore, title compound also displays photomodulable fluorescence sensitive distinguishable color response propylamine (PA) vapor relative other amine molecules. The selectivity toward volatile vapors may caused differences in size or propelling capacity amines. addition, character makes it suitable for ink-free erasable printing. This excellent more potential values areas photoelectric devices, light printing, detection, etc. It is helpful us further explore develop MOF-based multistimuli responsive ExV derivatives.

Язык: Английский

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Naphthalenediimide-Based Hybrid Material with Eu-Substituted Polyoxometalate: Photochromism, Near-Infrared Photothermal Conversion, and C-3 Functionalization of Indoles

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 7, 2025

Designing and developing novel photochromic materials with additional functions such as photothermal conversion photocatalysis are challenging but meaningful objectives. Crystalline naphthalenediimide (NDI)-based hybrids an attractive class of multifunctional fast-response photoinduced electron transfer charge separation properties. They promising photocatalysts. Herein, a hybrid material, EuPMo11O39(L)1.5(H2O)2]·DMA (EuMo-NDI) (L = N,N'-di(1-oxido-4-pyridyl)-1,4,5,8-naphthalenediimide), was prepared solvothermal method, integrating photoactive NDI derivative Eu-substituted polyoxometalate. EuMo-NDI exhibits 0D structure sensitive behavior under UV-vis light irradiation due to between its components. The colored sample demonstrated efficient near-infrared the strong absorption photogenerated radical anion NDI•- mixed valence heteropoly blue in region. Meanwhile, is easily excited presence donors form species, which can activate inert O2 superoxide O2•-. exhibited high photocatalytic activity for C-3 thiocyanation indoles mild conditions using white driving force. This work provides effective avenue design photocatalysts platforms.

Язык: Английский

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A multifunctional coordination polymer for photochromic films, smart windows, inkless and erasable prints and anti-counterfeiting

Dyes and Pigments, Год журнала: 2023, Номер 213, С. 111151 - 111151

Опубликована: Фев. 8, 2023

Язык: Английский

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Naphthalenediimide-based photochromic MOFs: Structure visualization upon radical formation, and applications in purple light detection, inkless printing and anti-counterfeiting

Chemical Engineering Journal, Год журнала: 2023, Номер 462, С. 142275 - 142275

Опубликована: Март 6, 2023

Язык: Английский

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Tuning redox activity in metal–organic frameworks: From structure to application

Coordination Chemistry Reviews, Год журнала: 2024, Номер 517, С. 216004 - 216004

Опубликована: Июнь 21, 2024

Язык: Английский

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Zinc tungstate encapsulated into a scarce Zn(ii)–viologen framework with photochromic, electrochromic and chemochromic properties

Dalton Transactions, Год журнала: 2024, Номер 53(11), С. 5192 - 5201

Опубликована: Янв. 1, 2024

A new type of POM–metaloxoviologen hybrid with a 3D trinuclear Zn( ii )–viologen framework encapsulating POMs exhibits multiple stimulus-responsive behaviors.

Язык: Английский

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Three Viologen Compounds Containing Keggin and Mo-Capped Weakley Polyoxometalates: Photo-/Thermo-/Electro-Chromic Studies

Crystal Growth & Design, Год журнала: 2024, Номер 24(5), С. 2033 - 2040

Опубликована: Фев. 19, 2024

Multiresponsive color-changing materials have important applications in daily life. In this work, three photochromic, thermochromic, and electrochromic compounds were synthesized by introducing two kinds of polyoxometalates into the viologen system, namely, {[Ni(dibipy)(4,4′-bipyH)(H2O)3]·[Ni4(H2O)2Ge2Mo18O68(MoO2)2]0.5}·10H2O (1), {[NiII(nibipy)2(4,4′-bipy)(H2O)2]·(SiMo12O40)}·2H2O (2), [(Hnibipy)2·(SiMo12O40)]·2.5H2O (3) (dibipy·Cl = 1-(3,5-dimethyl-isoxazol-4-ylmethyl)-[4,4']bipyridinyl-1-ium chloride, nibipy·Cl 1-(4-Nitro-benzyl)-[4,4']bipyridinyl-1-ium chloride 4,4′-bipy 4,4′-bipyridine). Compound 1 contains Mo-capped weakley anion [Ni4(H2O)2(Ge2Mo18O68(MoO2)2]8–, which is very rare polyoxometalates. Both 2 own mixed organic ligands to modify anions, such as 4,4′-bipy. Compounds 3 exhibit fast responsive photochromic effects, while compound has rapid recovery thermochromic properties. Sandwich-type rigid devices based on 1–3 also addition, hydrogels poly(methyl methacrylate)-based matrix membrane systems introduced achieve portable visual UV detectors. The these metal ion detection anticounterfeiting studied.

Язык: Английский

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