Multiple stimulus responsive of a novel naphthalenediimide-based 2D alkaline-earth metal MOF material: Hydrochromism, amine-/acid-induced chromism and ionochromism as well as visual artificial film application

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 488, P. 150917 - 150917

Published: April 1, 2024

Language: Английский

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Advances in viologen-based stimulus-responsive crystalline hybrid materials

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 518, P. 216064 - 216064

Published: July 5, 2024

Language: Английский

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Hybrid polysaccharide film infused with polyoxometalates for inkless printing and solar ultraviolet sensing

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 139308 - 139308

Published: Jan. 1, 2025

Language: Английский

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A Series of POM–Viologen Photo-/Electrochromic Hybrids and Hydrogels Acting as Multifunctional Sensors for Detecting UV, Hg²⁺, and Organic Amines

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(40), P. 16617 - 16626

Published: Sept. 28, 2023

In this work, POM anions were introduced into the viologen system in order to synthesize POM-viologen hybrid compounds with excellent properties. Three new compounds, {CdII(tybipy)(DMF)2[β-Mo8O26]0.5Cl} (1), {CoII(tybipy)2(DMF)2[H2(β-Mo8O26)]2}·4C2H7N (2), and (tybipy)4·(β-Mo8O26) (3) (tybipy·Br = 1-thiophen-3-ylmethyl-[4,4']bipyridinyl-1-ium bromide), have been prepared by a solvothermal method, their structures characterized. are modified mixing organic ligands transition metals 1 2. However, compound 3 is supramolecular structure constructed hydrogen bonding interactions between dissociative anions. These three rapid photoresponse photochromic ability, which can be made mixed matrix membranes hydrogels for UV detection. The rigid sandwich devices 1-3 achieved ultrafast electrochromism recovery. addition, based on achieve Compounds used ink-free printing Hg2+ fluorescence detecting. 2 also as amine detectors. Combined photochromism detection of Hg2+, visual test papers Cu2+, Co2+ successfully realized, improve portability speed heavy metal ions actual environment.

Language: Английский

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Lanthanide-Polyoxometalate-Based Film with Reversible Photochromism and Luminescent Switching Properties for Erasable Inkless Security Printing

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(6), P. 7973 - 7982

Published: Jan. 31, 2024

Security printing is of the utmost importance in information era. However, excessive use inks and paper still faces many economic environmental issues. Thus, developing erasable inkless security materials a remarkable strategy to save resources, protect environment, improve security. To this endeavor, photoresponsive lanthanide-polyoxometalate-doped gelatin film with high transparency was developed through solution casting method. Attenuated total reflection Fourier-transform infrared spectroscopy confirmed electrostatic hydrogen bond interactions between lanthanide-polyoxometalate. Absorption spectra, luminescent digital images indicated that displayed reversible photochromism behavior accompanied by switching property upon exposure UV irradiation oxygen (in dark) alternately, which allowed its potential application as reprintable medium for printing. The printed can be erased dark, reused again. exhibited excellent erasability, reprintability, renewability, low toxicity. In addition, multiple encryption strategies were designed This work offers an attractive alternative constructing terms simplifying preparation process, saving protecting environment.

Language: Английский

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Synergistic Photochromism, Fluorescence Switching, and Photomagnetism of Three Mn(II) Complexes Based on a Thiazolothiazole Extended Viologen Derivative

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Multifunctional photochromic hybrid materials have attracted great attention due to their wide prospects in information storage, molecular switches, and sensors. Herein, three new coordination polymers (CPs) with paramagnetic Mn2+ ions, namely [Mn2(TTVP)(m-BDC)2] (1), [Mn3(TTVP)(p-BDC)3(H2O)2]·0.5H2O (2), [Mn(TTVP)(H2O)4]·(4,4'-BPC)·2H2O (3) been synthesized (TTVP = 2,5-bis(pyridinium-4-yl)thiazolo[5,4-d]thiazole propionate, m-H2BDC isophthalic acid, p-H2BDC terephthalic 4,4'-H2BPC 4,4'-diphenyldicarboxylic acid). Interestingly, under Ultraviolet (UV) light irradiation, these compounds exhibit distinct performances photoinduced electron transfer (PIET) between aromatic carboxylic acids TTVP, as validated by spectroscopic structural analyses. The coloration kinetics final states are finely tuned modulating the number strength of weak interactions donors (EDs) acceptors (EAs). Furthermore, complexes magnetization enhancement at room temperature, while 2 3 reversible fluorescence modulation during coloration-decoloration cycles. introduction photoregulated fluorescent magnetism into PIET presents a promising approach for development multifunctional materials, holding potential range applications.

Language: Английский

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Effect of lattice water on the photochromic property/photochromism of a Zn(II)-viologen coordination polymers

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1311, P. 138340 - 138340

Published: April 19, 2024

Language: Английский

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Viologen‐based host–guest supramolecule with tunable intramolecular/intermolecular electron transfer chromism and dynamic fluorescence

Aggregate, Journal Year: 2024, Volume and Issue: 5(5)

Published: May 7, 2024

Abstract Viologen, as a type of strong electron acceptor, is prone to undergo transfer (ET) and change color under external stimuli. However, due the easy aggregation viologen molecules, they usually suffer from poor fluorescence emission in condensed phase. Herein, new derivative VioCl 2 ·2Cl ( 1 2+ ·2Cl) was designed synthesized, which enhanced by introducing Me‐β‐CD weaken interactions between molecules. Then viologen‐based host–guest supramolecule @Me‐β‐CD obtained electrostatic interactions. Photo‐/chemo‐responded guest supplies , green dark purple caused intramolecular intermolecular ET. Furthermore, displays an additional thermal responsive color. The triple chromic behaviors all exhibit excellent reversibility cycling stability. As expected, exhibits photoluminescence (PL) solid–liquid dual states, presenting improved quantum yield (Φ) (Φ s = 0.37%, Φ l 16.74%) 10.45%, 25.86%), intensity can be dynamically modulated light, heat, acid/base vapors. multi‐responsive chromism tunable allow for potential applications information security smart windows.

Language: Английский

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Photochromic and photo-regulated fluorescent coordination polymers derived from thiazolothiazole extended viologen in solid state and polymer film

Dyes and Pigments, Journal Year: 2024, Volume and Issue: 232, P. 112490 - 112490

Published: Oct. 12, 2024

Language: Английский

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Recent advances in photo‐ or electro‐chromic smart windows and their thermal regulation

Deleted Journal, Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

Abstract Windows are considered to be a major contributor energy consumption in buildings. Smart windows, as replacement for traditional can reversibly regulate the transmittance of sunlight, enabling indoor thermal regulation and promising reduce building consumption, thus attracting increasing attention. Especially, smart windows based on photochromic (PC) or electrochromic (EC) materials have been widely researched due zero input potential seasonal adaptability PC well unique active adjustment mode EC windows. These hold application prospects field future low energy‐consumption However, issues such difficulty scaling up slow response time poor cycling stability durability common both limit their development regulation. Focusing important progresses challenges these materials, we systematically review typical researches reported recent years. This covers evaluation parameters performance, innovative mechanisms, optical optimization methods, developing status materials. Moreover, also discuss existing with current propose targeted improving suggestions. Hopefully, this promote further technologies

Language: Английский

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