Tunable photo/thermochromic properties of Cd(<scp>ii</scp>)-viologen coordination polymers modulated by coordination modes for flexible imaging films and anti-counterfeiting

Huang, Li; Li, Xiao-Nan; Shen, Yuan; Hua, Yang; Song, Run-Hong; Cui, Wen-Bo; Li, Zi-Yi; Zhang, Hong

doi:10.1039/d4dt00764f

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2024

2025

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Cited by 4 publications

References 68 publications

(28 reference statements)

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Visual color and luminescence dual-switchable responsive properties of Lanthanide-Viologen frameworks for anti-counterfeiting and luminescence sensing

Huang,

Shen,

Hua

et al. 2025

Journal of Alloys and Compounds

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Visual color and luminescence dual-switchable responsive properties of Lanthanide-Viologen frameworks for anti-counterfeiting and luminescence sensing

Huang,

Shen,

Hua

et al. 2025

Journal of Alloys and Compounds

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Preparation of Electrochromic Hydrogels Based on Anderson-Type POMs–Viologen Compounds with Photochromic and Thermochromic Properties

Yang,

Liu,

Sun

et al. 2024

Inorg. Chem.

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Currently, color-changing materials with multiple responses have emerged as a prominent research focus. In this work, two Anderson-type POMs−viologen compounds were successfully synthesized under solvothermal conditions, namely, (1,3-bcby)•[Al-Mo 6 (OH) 6 O 18 ]•(en) 0.5 •H 2 O (1) and (1,3-bcby)•[Co 2 (H 2 O) 6 TeMo 6 O 24 ]•2H 2 O ( 2) (1,3bcby = 1,1′-bis(3-cyanobenzyl)-4,4′-bipyridine dichloride, en = ethylenediamine). Compound 1 shows a two-dimensional supramolecular lattice structure through the hydrogen bonding of dissociated water molecules. In compound 2, by utilizing the connection of Co atoms, a twodimensional layered framework is constructed. Owing to the widespread application of viologen compounds in color-changing materials, an investigation was performed for exploration of the photochromic and thermochromic responses of 1 and 2 upon exposure to light and heat. The study reveals that compound 1 exhibits an exceptional reversible photochromic property, while compound 2 demonstrated equally impressive thermochromic behavior. The filter paper prepared by compound 1 was successfully applied to ink-free, erasable printing. Furthermore, ECH-1 and ECH-2 (two types of electrochromic hydrogels), were prepared through varying concentrations of compounds 1 and 2. Notably, ECH-1 exhibits a rapid response time and substantial coloring efficiency. ECH-1 and ECH-2 have been integrated into smart windows, demonstrating their capacity to modulate indoor temperatures effectively.

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Photofluorochromic organic supramolecular compounds for multiple dynamic anticounterfeiting

Hua,

Huang,

Shen

et al. 2024

Inorg. Chem. Front.

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Tunable photo/thermochromic properties of Cd(ii)-viologen coordination polymers modulated by coordination modes for flexible imaging films and anti-counterfeiting

Cited by 4 publications

References 68 publications

Visual color and luminescence dual-switchable responsive properties of Lanthanide-Viologen frameworks for anti-counterfeiting and luminescence sensing

Visual color and luminescence dual-switchable responsive properties of Lanthanide-Viologen frameworks for anti-counterfeiting and luminescence sensing

Preparation of Electrochromic Hydrogels Based on Anderson-Type POMs–Viologen Compounds with Photochromic and Thermochromic Properties

Photofluorochromic organic supramolecular compounds for multiple dynamic anticounterfeiting

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