Cooperative and Orthogonal Switching in the Solid State Enabled by Metal‐Organic Framework Confinement Leading to a Thermo‐Photochromic Platform DOI Creative Commons

Gina R. Wilson,

Kyoung Chul Park,

Grace C. Thaggard

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(37)

Published: July 24, 2023

Cooperative behavior and orthogonal responses of two classes coordinatively integrated photochromic molecules towards distinct external stimuli were demonstrated on the first example a photo-thermo-responsive hierarchical platform. Synergetic to temperature excitation wavelength are achieved by confining stimuli-responsive moieties within metal-organic framework (MOF), leading preparation novel spiropyran-diarylethene based material. Synergistic photoswitches enables study resonance energy transfer as well control photoinduced charge processes, milestones required advance optoelectronics development. Spectroscopic studies in combination with theoretical modeling revealed nonlinear effect material electronic structure arising from coordinative integration photoresponsive photoisomerization mechanisms. Thus, reported work covers multivariable facets not only fundamental aspects photoswitch cooperativity, but also provides pathway modulate photophysics electronics multidimensional functional materials exhibiting thermo-photochromism.

Language: Английский

Phase change material-integrated latent heat storage systems for sustainable energy solutions DOI
Waseem Aftab, Ali Usman, Jinming Shi

et al.

Energy & Environmental Science, Journal Year: 2021, Volume and Issue: 14(8), P. 4268 - 4291

Published: Jan. 1, 2021

This review highlights the broad and critical role of latent heat storage in sustainable energy systems including solar-thermal storage, electro-thermal waste thermal regulations.

Language: Английский

Citations

351
Storing energy with molecular photoisomers DOI Creative Commons
Zhihang Wang, Paul Erhart, Tao Li

et al.

Joule, Journal Year: 2021, Volume and Issue: 5(12), P. 3116 - 3136

Published: Nov. 22, 2021

Some molecular photoisomers can be isomerized to a metastable high-energy state by exposure light. These molecules then thermally or catalytically converted back their initial state, releasing heat in the process. Such reversible photochemical process has been considered for developing solar thermal (MOST) systems. In this review, we introduce concept, criteria, and state-of-the-art of MOST systems, with an emphasis on three most promising systems: norbornadiene/quadricyclane, E/Z-azobenzene, dihydroazulene/vinylheptafulvene. After discussing fundamental working principles, focus design strategies improving energy storage performance, remaining challenges, potential areas. Finally, summarize current incorporation into functional devices conclude perspective challenges future directions.

Language: Английский

Citations

152
Azoheteroarene and Diazocine Molecular Photoswitches: Self‐Assembly, Responsive Materials and Photopharmacology DOI Creative Commons
Anurag Mukherjee,

Maximilian D. Seyfried,

Bart Jan Ravoo

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(42)

Published: May 22, 2023

Abstract Aromatic units tethered with an azo (−N=N−) functionality comprise a unique class of compounds, known as molecular photoswitches, exhibiting reversible transformation between their E ‐ and Z ‐isomers in response to photo‐irradiation. Photoswitches have been explored extensively the recent past prepare dynamic self‐assembled materials, optoelectronic devices, responsive biomaterials, more. Most such materials involve azobenzenes photoswitch date, SciFinder lists more than 7000 articles 1000 patents. Subsequently, great deal effort has invested improve photo‐isomerization efficiency related mesoscopic properties azobenzenes. Recently, azoheteroarenes cyclic azobenzenes, arylazopyrazoles, arylazoisoxazoles, arylazopyridines, diazocines, emerged second generation photoswitches beyond conventional These offer distinct photoswitching behavior which make them highly promising candidates for multifaceted applications ranging from photoresponsive photopharmacophores. In this minireview, we introduce structural refinement diazocines summarize state‐of‐the‐art on utilizing these building blocks supramolecular assembly, material science photopharmacology, highlighting versatile photochemical behavior, enhanced functionality, latest applications.

Language: Английский

Citations

74
Traffic Lights for Catalysis: Stimuli‐Responsive Molecular and Extended Catalytic Systems DOI Creative Commons
Grace C. Thaggard, Johanna Haimerl, Roland A. Fischer

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(29)

Published: March 30, 2023

Abstract The advances made in the field of stimuli‐responsive catalysis during last five years with a focus on novel recently‐emerged directions and applications have been surveyed. Metal‐free catalysts organometallic complexes, as well biomimetic systems extended structures, which display switchable catalytic activity for variety organic transformations, are discussed. Light‐activated comprised photochromic molecules capable modulating reaction rate, yield, or enantioselectivity based geometric electronic changes associated photoisomerization detailed discussion. Alternative stimuli, including pH temperature, could be applied either alone combination light, also addressed. Recent clearly demonstrate that capability to finely tune catalyst behavior via an external stimulus is powerful tool alter landscape sustainable chemistry.

Language: Английский

Citations

45
Chemistry in phase change energy storage: Properties regulation on organic phase change materials by covalent bond modification DOI
Long Geng,

Jipeng Cui,

Changle Zhang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 495, P. 153359 - 153359

Published: June 21, 2024

Language: Английский

Citations

23
Visible-Light-Activated Heteroaryl Azoswitches: Toward a More Colorful Future DOI
Tongtong Dang, Zhaoyang Zhang, Tao Li

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(29), P. 19609 - 19620

Published: July 11, 2024

Azobenzenes (Ph-N═N-Ph) are known as the most widely studied molecular photoswitches, and recent rise of azoheteroarenes (Het-N═N-Ph or Het-N═N-Het) offers great opportunities to advance this already mature field. A common limitation is that azo-switches generally require harmful UV light for activation, which hinders their application across various fields. Despite efforts in developing visible-light azobenzenes over past few decades, potential heteroaryl azoswitches remains largely unexplored. This Perspective summarizes state-of-the-art advancements azoswitches, covering design strategies, structure-property relationship, applications. We highlight distinctive advantages research development switches. Furthermore, we discuss challenges emerging field propose solutions address crucial issues such spectral red-shift thermal half-life. Through paper, aim provide inspiration further exploration field, anticipation growing prosperity bright future azoheteroarene photoswitches.

Language: Английский

Citations

23
New Molecular Photoswitch Based on the Conformational Transition of Phenothiazine Derivatives and Corresponding Triplet Emission Properties DOI

Mingxue Gao,

Ruimin Wu,

Ya‐Wen Zhang

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Molecular photoswitch research has drawn much attention in the last century owing to its great potential development of smart materials. However, photoswitches suitable for constructing light-responsive luminescent materials remain limited, especially those involving triplet-state phosphorescence. Herein, we designed a novel molecular based on conformation transition phenothiazine derivatives, minimizing steric hindrance (-CH

Language: Английский

Citations

5
Thermal properties of composite organic phase change materials (PCMs): A critical review on their engineering chemistry DOI
Dimberu G. Atinafu, Yong Sik Ok, Harn Wei Kua

et al.

Applied Thermal Engineering, Journal Year: 2020, Volume and Issue: 181, P. 115960 - 115960

Published: Aug. 27, 2020

Language: Английский

Citations

135
Toward Controlled Thermal Energy Storage and Release in Organic Phase Change Materials DOI Creative Commons
Mihael A. Gerkman, Grace G. D. Han

Joule, Journal Year: 2020, Volume and Issue: 4(8), P. 1621 - 1625

Published: Aug. 1, 2020

Language: Английский

Citations

107
Sunlight-activated phase change materials for controlled heat storage and triggered release DOI
Yuran Shi, Mihael A. Gerkman, Qian‐Feng Qiu

et al.

Journal of Materials Chemistry A, Journal Year: 2021, Volume and Issue: 9(15), P. 9798 - 9808

Published: Jan. 1, 2021

Photo-responsive organic phase change materials that can absorb filtered solar radiation in the visible range to store both latent heat and photon energy are demonstrated.

Language: Английский

Citations

94