Four multi-stimuli-responsive color-changing materials based on Anderson-viologens for erasable inkless printing, UV detectors and gradient detection of amine gases

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2025, Volume and Issue: 332, P. 125826 - 125826

Published: Jan. 30, 2025

Language: Английский

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Incorporation of Electron-Deficient Sites into Luminescent Complexes: Photochromism and Chlortetracycline Detection

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

Published: Feb. 17, 2025

Chlortetracycline (CTE) is a kind of tetracycline antibiotic against Gram-positive and negative bacteria. However, the overuse excessive discharge CTE would be harmful to environment human beings inevitably. Herein, achieve sensitive specific detection CTE, an electron-deficient site (i.e., viologen segment) incorporated into construction two isostructural multifunctional lanthanide-based complexes. Besides distinct photochromism coupled with light-modulated typical Eu3+/Sm3+ luminescence, Eu-CP also shows significant luminescence quenching behavior toward limit 0.19 μM, which superior most reported Eu3+-based fluorescence chemosensors for CTE. Moreover, thanks CTE-detection Eu-CP, portable test strip Eu-CP@PAN further obtained evaluating residual content in fresh food corresponding RGB value can real-time determined by smartphone.

Language: Английский

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Two 2D coordination polymers derived from 1-(2-carboxyethyl)-4,4′-bipyridinium bromide: Photochromism

Inorganica Chimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 122648 - 122648

Published: March 1, 2025

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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Syntheses and Color-Changing Properties of Three PW₁₁M (M = Ni, Cu, and Zn)-Based Viologen Compounds

Crystal Growth & Design, Journal Year: 2024, Volume and Issue: 24(22), P. 9735 - 9742

Published: Nov. 2, 2024

Three POM–viologen compounds were synthesized at a temperature of 120 °C by traditional hydrothermal technique, namely (1-Cby)·(1,1′-Bby)·[(α–PW11O39)NiII(1-Cby)]·7H2O (PW11Ni-BCby), (1-Cby)·(1,1′-Bby)·[(α-PW11O39)CuII(1-Cby)]·6H2O (PW11Cu-BCby), and (1-Cby)2[H5(α-PW11O39)2Zn2II(1-Cby)2]·27H2O (PW11Zn-Cby) (1-Cby·Br = 1-cyclopropylmethyl-4,4′-bipyridinyl-1-ium bromide; 1,1′-Bby·Br 1,1′-bis(cyclopropylmethyl)-4,4′-bipyridine bromide). All three contain PW11M (M Ni, Cu, Zn), transition metal M-substituted monosubstituted Keggin-type structure. These can exhibit variety excellent properties to stimulate discoloration in light, heat, electricity. Moreover, PW11Cu-BCby PW11Zn-Cby be applied inkless erasable printing dual anticounterfeiting applications based on their photochromic behaviors.

Language: Английский

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Visual Color and Luminescence Dual-switchable Responsive Properties of Lanthanide-Viologen Frameworks for Anti-Counterfeiting and Luminescence Sensing

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 178155 - 178155

Published: Dec. 1, 2024

Language: Английский

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Visual Color and Luminescence Dual-Switchable Responsive of Lanthanide-Viologen Frameworks for Anti-Counterfeiting and Luminescence Sensing

Published: Jan. 1, 2024

Language: Английский

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Crystal structure and photochromic properties of three cocrystals derived from 1,1’-bis(carboxymethyl)-4,4’-bipyridine

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: unknown, P. 140962 - 140962

Published: Nov. 1, 2024

Language: Английский

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