Broadening the scope of uranyl photoreactivity: The oxidation of a uranyl complex anion in solid-state materials DOI Creative Commons
Jordan A. Herder, Aaron D. Nicholas, Christopher L. Cahill

и другие.

Опубликована: Окт. 29, 2021

Reported are the syntheses, structural characterizations and luminescence properties of three novel [UO2Cl4]2 bearing compounds containing substituted 1,1’-dialkyl-4,4’-bipyridinum dications (i.e. viologens). These undergo photoinduced quenching upon exposure to UV radiation. Kinetic analyses indicate degree follows a second-order rate law with constant dependent on viologen substituent. This phenomenon is proposed involve formal transfer one electron from [UO2Cl4]2- species. mechanism supported through series calculations computational work including Rehm-Weller analysis, time-dependent density functional theory (TD-DFT), states (DOS). constitutes first study an oxidized uranyl complex anion which expands conventional understanding photoreactivity.

Язык: Английский

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

Yuan Shen

и другие.

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

Процитировано

10

Recent advances in metal-organic frameworks for X-ray detection DOI Open Access
Hongming Chen, Jingru Chen, Meng-Hua Li

и другие.

Science China Chemistry, Год журнала: 2022, Номер 65(12), С. 2338 - 2350

Опубликована: Ноя. 7, 2022

Язык: Английский

Процитировано

33

A Three-Component Donor–Acceptor Hybrid Framework with Low-Power X-ray-Induced Photochromism DOI
Yiwen Wang, Meng-Hua Li, Shuquan Zhang

и другие.

Inorganic Chemistry, Год журнала: 2022, Номер 61(21), С. 8153 - 8159

Опубликована: Май 17, 2022

Donor-acceptor (D-A) hybrid frameworks with visual X-ray photochromism at room temperature are fascinating because of their promising applications as detectors. Herein, a 3-fold interpenetrated D-A framework, [Eu(bcbp)1.5(DMF)(H2O)2][Co(CN)6]·4H2O·CH3OH (1), has been obtained by incorporating electron-rich Co(CN)63- into the electron-deficient europium viologen which interestingly exhibits ultraviolet and low-power dual remarkable color change from brown to green. Experimental theoretical studies revealed that photochromic behavior 1 could be attributed its structural feature increasing extent photoinduced electron transfer thus photogenerated radical species upon irradiation. Meanwhile, due introduction emissive lanthanide cations in system, photomodulated luminescence properties.

Язык: Английский

Процитировано

32

Metal–cyanide hybrid materials exhibiting photochromic and photomagnetic responses based on viologen receptors DOI
Hao Wang,

Teng-Da Zhou,

Ji-Tun Chen

и другие.

Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(17), С. 6326 - 6332

Опубликована: Янв. 1, 2024

A photochromic material based on viologen was synthesized. During the photo-induced color transition, DC magnetic susceptibility enhanced by 48%, and an increase in relaxation time after illumination observed.

Язык: Английский

Процитировано

9

Two novel multifunctional chromic compounds: Synthesis, photochromism, ammonia sensing, and anion sensing DOI

Jingying Chu,

Yuling Mao, Xinyue Ma

и другие.

Journal of Molecular Structure, Год журнала: 2024, Номер 1306, С. 137937 - 137937

Опубликована: Март 4, 2024

Язык: Английский

Процитировано

8

Viologen‐based host–guest supramolecule with tunable intramolecular/intermolecular electron transfer chromism and dynamic fluorescence DOI Creative Commons
Zhiang Bai, Haotian Zhang, Rui Xue

и другие.

Aggregate, Год журнала: 2024, Номер 5(5)

Опубликована: Май 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.

Язык: Английский

Процитировано

6

Force/Acid-Activated and Radical-Regulated photochromic luminescence in a binuclear Zero-Dimensional complex for multi-level anti-counterfeiting DOI
Yong-Sheng Yang, Yuting Feng, Tingting Lu

и другие.

Chemical Engineering Journal, Год журнала: 2024, Номер 492, С. 152061 - 152061

Опубликована: Май 8, 2024

Язык: Английский

Процитировано

5

A novel Zn(II) coordination polymer based on viologen: Photochromism, photocontrolled luminescence, ammonia vapor sensing, and luminescent sensing DOI

Baili Zhu,

Jingying Chu,

Yu Jia

и другие.

Inorganic Chemistry Communications, Год журнала: 2024, Номер 170, С. 113239 - 113239

Опубликована: Сен. 26, 2024

Язык: Английский

Процитировано

4

Multiple Electron Transfer in Semiconductive Ternary D‐D'‐A Metal‐Organic Framework for Enhanced X‐Ray Detection and Imaging DOI Open Access

Qingsong Wei,

Jingyan Liu, Liang Wu

и другие.

Small, Год журнала: 2024, Номер unknown

Опубликована: Авг. 22, 2024

Abstract Semiconductive metal–organic frameworks (MOFs) with donor–acceptor (D–A) characteristics have garnered attractive attention due to their capacity for separating and transferring photogenerated charges, making them promising candidates high‐performance X‐ray detectors. However, the low charge transfer efficiency between metal nodes organic ligands limits X‐ray‐to‐electricity conversion of these materials. Herein, an additional photoactive donor (D’) is introduced by incorporating a heavy atom‐containing polyoxometalate (POM) [α‐SiW 12 O 40 ] 4− into binary {[Ni·bcbp·(H 2 O) ]·(H 4 ·Cl} n (Ni‐bcbp, bcbp: H bcbp·2Cl = 1,1′‐bis(4‐carboxyphenyl)(4,4′‐bipyridinium) dichloride) MOF, resulting in semiconductive ternary D‐D'‐A framework {[Ni (bcbp) ·(H ·(DMA)]·(SiW )} (SiW@Ni‐bcbp, DMA: dimethylacetamide). The obtained material features unprecedented porous 8‐connected bcu‐net structure that accommodates nanoscale counterions, displaying uncommon optoelectronic responses. In contrast Ni‐bcbp, SiW@Ni‐bcbp exhibits distinctive photochromism robust responsiveness, which can be attributed synergistic effects electron reservoir multiple photoinduced originating from POMs. As result, detector based on demonstrates sensitivity 5741.6 µC Gy air −1 cm −2 detection limit 0.49 µGy s . Moreover, devices demonstrated capability producing clearness images, providing feasible stable solution constructing direct

Язык: Английский

Процитировано

3

Metal–organic framework radiochromic materials: Recent advances and applications DOI

Qingsong Wei,

Yi‐Ming Di,

Ming‐Hua You

и другие.

Coordination Chemistry Reviews, Год журнала: 2025, Номер 534, С. 216616 - 216616

Опубликована: Март 15, 2025

Язык: Английский

Процитировано

0