Photochromic crystalline hybrid materials with switchable properties: Recent advances and potential applications

Zhao, Jia-Li; Li, Menghua; Cheng, Yamin; Zhao, Xiaowei; Ying, Xu; Cao, Zhong‐Yan; You, Ming‐Hua; Lin, Mei‐Jin

doi:10.1016/j.ccr.2022.214918

Cited by 81 publications

(29 citation statements)

References 139 publications

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“…It has been demonstrated that incorporating electron-rich pyridine moieties into MOFs could propagate an electron transfer process within the framework or via host-guest interactions, and hence provide an avenue for applications in separation, photophysics, catalysis, and so on. 23,36 Intriguingly, inserting 2,5-pyridinedicarboxylate linkers into Th-BCPT-PDC led to an iodine uptake capacity of 1.314 g g −1 , which, to the best of our knowledge, is the second-highest of all Th-MOFs. 37 Furthermore, an XPS study revealed an even higher I 3 − content for the iodine-loaded Th-BCPT-PDC (85%) than for Th-BCPT-BDC-(NH 2 ) 2 (79%), suggesting a quite strong affinity between PDC 2− moieties and I 2 molecules and a subsequent transformation from I 2 into I 3 − via electron transfer (Fig.…”

mentioning

confidence: 83%

Post-synthetic linker installation: an unprecedented strategy to enhance iodine adsorption in metal–organic frameworks

Qin

et al. 2023

Chem. Commun.

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mentioning

confidence: 83%

Post-synthetic linker installation: an unprecedented strategy to enhance iodine adsorption in metal–organic frameworks

Qin

et al. 2023

Chem. Commun.

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“…Hybrid organic–inorganic perovskites (HOIPs) have received great scientific attention because of their extraordinary optoelectronic performance − and various applications. − However, steric constraints imposed by Goldschmidt’s tolerance factor make the three-dimensional (3D) halide perovskites’ structure limited . Compared with 3D HOIPs, two-dimensional (2D) HOIPs have relaxed steric constraints.…”

Section: Introductionmentioning

confidence: 99%

Mussel-Inspired Two-Dimensional Halide Perovskite Facilitated Dopamine Polymerization and Self-Adhesive Photoelectric Coating

Zhu

Zhao

et al. 2023

Inorg. Chem.

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Polydopamine (PDA) is a good adhesion agent for lots of gels inspired by the mussel, whereas hybrid organic–inorganic perovskites (HOIPs) usually exhibit extraordinary optoelectronic performance. Herein, mussel-inspired chemistry has been integrated with two-dimensional HOIPs first, leading to the preparation of new crystal (HDA)2PbBr4 (1) (DA = dopamine). The organic cation dopamine can be introduced into PDA resulting in a thin film of (HPDA)2PbBr4 (PDA-1). The dissolved inorganic components of layered perovskite in DMF solution together with H2O2 addition can facilitate DA polymerization greatly. More importantly, PDA-1 can inherit an excellent semiconductor property of HOIPs and robust adhesion of the PDA hydrogel resulting in a self-adhesive photoelectric coating on various interfaces.

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“…[26] The photochromic nature of the 4,4'-bipyridinium cations (also termed as viologens) and many other interesting crystalline materials have been studied to explore their potential applications as smart photoswitchable devices. [27][28][29] Very recently, Guo and coworkers have reported that 4,4'-bipyridinium cation exhibits reversible photochromism with semiconductivity, where the coloration and decoloration process was triggered by light. [30] They have concluded that strong cation-π interactions assisted in quick electron transfer in these transformations resulting in the variation of colors and corresponding semiconductivity values.…”

Section: Introductionmentioning

confidence: 99%

Photochromism and Photomagnetism in 1,4-bis(4,5-diphenyl-imidazolyl)benzene Chromophores: Water Assisted π-stacks for the Generation of Stable Free Radicals in Solid State

Saha,

Khamurai,

Moi

et al. 2023

Preprint

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Photochromism and photomagnetism are two important features for the generation of smart materials that are of utility for optical switches and memory devices. Very few materials that exhibit both the features at room temperature are known to date, the reported ones mostly contain metal-ions to assist the electron transfer with photo stimuli. Herein, we report a new class of organic materials that show photochromism and photomagnetism at room temperature due to the generation of free radicals in the solid-state. 1,4-bis(4,5-diphenyl-1H-imidazol-2-yl)benzene (BDPI) was found to acts as organic photomagnet without use of any traditional photochromic couplers or radical containing moieties. Solvent molecules (eg. water and DMSO) form hydrogen bonds with the imidazole rings which act as binding glue in stacking of 1,4-bis(imidazolyl)benzene moieties via π···π interactions. These interactions found to play a significant role in promoting strong spin-spin interaction in the solid-state which can be inferred from the appearance of broad EPR signal, whereas a sharp signal appeared only after irradiation. The sharp signal indicates formation of paramagnetic free radicals which influence antiferromagnetic exchange interactions with weakening of the magnetic susceptibility significantly. This work provides a new direction in the ongoing research of photochromic and photomagnetic materials, where a simple 1,4- bis(imidazolyl)benzene system changes its color, radical activity and magnetic behavior with photoirradiation.

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Photochromic crystalline hybrid materials with switchable properties: Recent advances and potential applications

Cited by 81 publications

References 139 publications

Post-synthetic linker installation: an unprecedented strategy to enhance iodine adsorption in metal–organic frameworks

Post-synthetic linker installation: an unprecedented strategy to enhance iodine adsorption in metal–organic frameworks

Mussel-Inspired Two-Dimensional Halide Perovskite Facilitated Dopamine Polymerization and Self-Adhesive Photoelectric Coating

Photochromism and Photomagnetism in 1,4-bis(4,5-diphenyl-imidazolyl)benzene Chromophores: Water Assisted π-stacks for the Generation of Stable Free Radicals in Solid State

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