All-Visible-Light-Activated Diarylethene Photoswitches DOI Creative Commons
Ruiji Li, Ting Ou, Wen Li

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(21), P. 5202 - 5202

Published: Nov. 3, 2024

Photochromic compounds have attracted much attention for their potential applications in photo-actuators, optoelectronic devices and optical recording techniques. This interest is driven by key photochemical photophysical properties, which can be reversibly modulated light irradiation. Among them, diarylethene garnered extensive investigation due to excellent thermal stability of both open- closed-form isomers, robust fatigue resistance, high photocyclization quantum yield good photochromic performance solution solid phases. However, a notable limitation expanding the utility necessity ultraviolet induce photochromism. requirement poses challenges, as detrimental biological tissues, its penetration often restricted various media. review provides an overview design strategies employed development visible-light-responsive compounds. These serve guideline molecular design, with significantly broaden all-visible-light-activated realms materials science biomedical science.

Language: Английский

Visible light radical photoinitiators of polymerization based on photochromic molecules DOI
Céu M. Sousa, José R. Fernandes, Paulo J. Coelho

et al.

Dyes and Pigments, Journal Year: 2024, Volume and Issue: 226, P. 112139 - 112139

Published: April 4, 2024

Language: Английский

Citations

2
Combined Photopolymerization and Localized Photochromism Generation by Aza-Diarylethene and Hemiindigo Synergy DOI Creative Commons

Maximilian Sacherer,

Henry Dube

Published: Aug. 1, 2024

Molecular photoswitches produce light-controlled changes at the nanometer scale and can therefore be used to alter states behavior of materials in a truly bottom-up fashion. Here we show an escalating photonic complexity material property control with light using recently developed aza-diarylethene combination hemiindigo (HI) photoswitches. First, as photoswitch polystyrene (PS) inscribe relief-type 3D structures reversibly into PS. Second, aza- diarylethene further photoinitiator for light-induced polymerization acrylates, demonstrating first time chemical reactivity its zwitterionic switching state. Third, HIs are implemented polymerized PMA, generating photochromic polymers. At fourth level, binary mixture allows synergize induced photopolymerization localized photochromism simultaneously entrapped functional HI. With such multi-level response, utility this particular applications advanced is demonstrated.

Language: Английский

Citations

1
Methods for functionalization of anthraquinones DOI
Valeria A. Litvinova, Alexander S. Tikhomirov, Andrey E. Shchekotikhin

et al.

Russian Chemical Reviews, Journal Year: 2024, Volume and Issue: 93(10), P. RCR5141 - RCR5141

Published: Oct. 1, 2024

Language: Английский

Citations

1
Combined Photopolymerization and Localized Photochromism by Aza‐Diarylethene and Hemiindigo Synergy DOI Creative Commons

Maximilian Sacherer,

Henry Dube

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 21, 2024

Abstract Molecular photoswitches produce light‐controlled changes at the nanometer scale and can therefore be used to alter states behavior of materials in a truly bottom‐up fashion. Here an escalating photonic complexity material property control with light is shown using recently developed aza‐diarylethene combination hemiindigo (HI) photoswitches. First, as photoswitch polystyrene (PS) reversibly inscribe relief‐type 3D structures into PS. Second, further photoinitiator for light‐induced polymerization methyl acrylate (MA), demonstrating first time chemical reactivity its zwitterionic switching state. Third, HIs are implemented polymerized MA, generating photochromic polymers. At fourth level, binary mixture allows synergize aza‐diarylethene‐induced photopolymerization localized photochromism simultaneously entrapped functional HI. With such multilevel response, utility this particular applications advanced demonstrated.

Language: Английский

Citations

1
Second Generation Zwitterionic Aza‐Diarylethene: Photoreversible CN Bond Formation, Three‐State Photoswitching, Thermal Energy Release, and Facile Photoinitiation of Polymerization DOI Creative Commons
Henry Dube,

Maximilian Sacherer

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 21, 2024

Abstract Diarylethenes are a well‐studied and optimized class of photoswitches with wide range applications, including data storage, smart materials, or photocontrolled catalysis biological processes. Most recently, aza‐diarylethenes have been developed in which carbon‐carbon bond connections replaced by carbon‐nitrogen connections. This structural elaboration opens up an entire new structure property space expanding the versatility applicability diarylethenes. In this work, we present second generation zwitterionic aza‐diarylethenes, finally allows for fully reversible photoswitching precise control over all three switching states. High‐yielding between neutral open form Z isomer is achieved two different wavelengths light. The third E isomeric state can be reached to 87 % upon irradiation wavelength. Its high energy content >10 kcal/mol released thermally deliberate solvent change as trigger mechanism, rendering into interesting candidates molecular solar thermal storage (MOST) applications. also serves locking state, allowing toggle light‐responsiveness reversibly labile stable switching. Further, states leads highly efficient photopolymerization methyl acrylate (MA), directly harnessing unleashed chemical reactivity our aza‐diarylethene materials application.

Language: Английский

Citations

0
Second Generation Zwitterionic Aza‐Diarylethene: Photoreversible CN Bond Formation, Three‐State Photoswitching, Thermal Energy Release, and Facile Photoinitiation of Polymerization DOI Creative Commons
Henry Dube,

Maximilian Sacherer

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 21, 2024

Abstract Diarylethenes are a well‐studied and optimized class of photoswitches with wide range applications, including data storage, smart materials, or photocontrolled catalysis biological processes. Most recently, aza‐diarylethenes have been developed in which carbon‐carbon bond connections replaced by carbon‐nitrogen connections. This structural elaboration opens up an entire new structure property space expanding the versatility applicability diarylethenes. In this work, we present second generation zwitterionic aza‐diarylethenes, finally allows for fully reversible photoswitching precise control over all three switching states. High‐yielding between neutral open form Z isomer is achieved two different wavelengths light. The third E isomeric state can be reached to 87 % upon irradiation wavelength. Its high energy content >10 kcal/mol released thermally deliberate solvent change as trigger mechanism, rendering into interesting candidates molecular solar thermal storage (MOST) applications. also serves locking state, allowing toggle light‐responsiveness reversibly labile stable switching. Further, states leads highly efficient photopolymerization methyl acrylate (MA), directly harnessing unleashed chemical reactivity our aza‐diarylethene materials application.

Language: Английский

Citations

0
All-Visible-Light-Activated Diarylethene Photoswitches DOI Creative Commons
Ruiji Li, Ting Ou, Wen Li

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(21), P. 5202 - 5202

Published: Nov. 3, 2024

Photochromic compounds have attracted much attention for their potential applications in photo-actuators, optoelectronic devices and optical recording techniques. This interest is driven by key photochemical photophysical properties, which can be reversibly modulated light irradiation. Among them, diarylethene garnered extensive investigation due to excellent thermal stability of both open- closed-form isomers, robust fatigue resistance, high photocyclization quantum yield good photochromic performance solution solid phases. However, a notable limitation expanding the utility necessity ultraviolet induce photochromism. requirement poses challenges, as detrimental biological tissues, its penetration often restricted various media. review provides an overview design strategies employed development visible-light-responsive compounds. These serve guideline molecular design, with significantly broaden all-visible-light-activated realms materials science biomedical science.

Language: Английский

Citations

0