Chameleon-inspired supramolecular materials based on cucurbit[7]uril and viologens exhibiting full-color tunable photochromic behavior

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149551 - 149551

Published: Feb. 11, 2024

Language: Английский

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

Crystal Growth & Design, Journal Year: 2024, Volume and Issue: 24(8), P. 3299 - 3308

Published: March 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.

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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Interlocking viologen-based lanthanide complexes for multifunctionality: Photochromism, electrochromism, photoluminescence, photomagnetism, and inkless printing and UV shielding applications

Dyes and Pigments, Journal Year: 2024, Volume and Issue: 225, P. 112100 - 112100

Published: March 15, 2024

Language: Английский

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Cucurbit[7]Uril‐Based Self‐Assembled Supramolecular Complex with Reversible Multistimuli‐Responsive Chromic Behavior and Controllable Fluorescence

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(23)

Published: June 4, 2024

Abstract Multistimuli‐responsive color‐changing materials have potential applications in areas such as chemical sensing and anti‐counterfeiting. In this work, a fluoro‐phenyl‐acetyl‐substituted viologen derivative (FPAV·Cl 2 ) is synthesized, which can form supramolecular inclusion complex with cucurbit[7]uril (Q[7]) via self‐assembly. Significantly, the resulting FPAV 2+ @Q[7] solid‐state exhibits visual color changes response to multiple external stimuli including light, heat, vapors of ammonia organic amines. The electron spin resonance (ESR) ultraviolet–visible (UV–vis) spectra analysis reveals that photochromic, thermochromic, vapochromic behavior due generation +• free radicals from transfer. Furthermore, solid‐state, shows controllable fluorescence regulated by its chromic process. Based on multi stimuli‐responsive color‐changes properties @Q[7], practical erasable inkless printing, anti‐counterfeiting processes, visible ammonia/organic amines detection, information encryption are demonstrated. strategy encapsulating derivatives into macrocycles provides general method for fabricating applications.

Language: Английский

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Series of Viologen-based Metal-oxalate Frameworks Showing Ultrafast-response Photo/Electrochromic and UV Detection Behavior

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 178621 - 178621

Published: Jan. 1, 2025

Language: Английский

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Facile fabrication of morphology-adjustable viologen-based ionic polymers for carbon dioxide immobilization and iodine vapor adsorption

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Incorporation of a one-dimensional electron-rich chain in viologen-based coordination polymers for super photochromic properties and improved optical applications in polyvinyl alcohol film

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(11), P. 3200 - 3210

Published: Jan. 1, 2024

1D electron-rich complex chain was incorporated to the viologen (1), resulting in robust photochromic properties, distinct ET pathways, and applications optics. And 1-PVA film can improve photochromism of complexes.

Language: Английский

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Third-Order Nonlinear Optical Modulation Behavior of Photoresponsive Bimetallic MOFs

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(14), P. 6526 - 6536

Published: March 22, 2024

Bimetallic metal–organic frameworks (MOFs) capable of sensing external stimuli will provide more possibilities for further regulating third-order nonlinear optical (NLO) properties. In this work, we synthesized bimetallic MOFs (ZnCu-MOF and ZnCd-MOF) through central metal exchange using a photoresponsive Zn-MOF as precursor. Compared with Zn-MOF, both ZnCu-MOF ZnCd-MOF exhibit significantly enhanced NLO absorption This is mainly attributed to the introduction ions different electron configurations that can adjust bandgap enhance delocalization, thus promoting transfer. Interestingly, show transition from reverse saturation (RSA) (SA) after exposure ultraviolet irradiation, they retain properties directional photogenerated Photoresponsive not only have effect modulation electronic structures but also characteristics photoinduced transfer, exhibiting diversified These findings novel method development multifunctional materials.

Language: Английский

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Series of Viologen-Based Metal–Organic Polyhedra with Photo/Electrochromic Behavior for Inkless Printing and UV Detection

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(15), P. 6692 - 6700

Published: April 4, 2024

The fabrication of molecular crystalline materials with fast, multistimuli-responsive behavior and the construction corresponding structure–activity relationship are extraordinary significance for development smart materials. In this context, three functional metal–organic polyhedra (MOP), {[Dy2(bcbp)3(NO3)1.5(H2O)7]·Cl4.2·(NO3)0.3·H2O}n (1), {[Dy2(bcbp)4(H2O)8]Cl6}n (2), {[Eu2(bcbp)4(H2O)10]Cl6·H2O}n (3; bcbp = 1,1′-bis(4-carboxyphenyl)-4,4′-bipyridinium), were successfully prepared characterized. All compounds exhibit rapid reversible photochromic electrochromic dual-responsive behaviors. Furthermore, benefiting from well-defined crystal structure different responsive behaviors, photoinduced electron transfer (PIET) process explored. addition, considering excellent performance, function filter paper organic glass used ink-free printing UV light detection.

Language: Английский

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