Expanding Color Control of Anodically Coloring Electrochromes Based on Electron-Rich 1,4-Dihydropyrrolo[3,2-b]pyrroles DOI Creative Commons

Allison M. Hawks,

Lillian M. Daniel,

Valentino S. Sorto

et al.

ACS Applied Optical Materials, Journal Year: 2024, Volume and Issue: 2(6), P. 1235 - 1244

Published: June 12, 2024

Anodically coloring electrochromes have received attention in recent years as high-contrast alternatives to cathodically due their superior optical contrast during electrochemical switching. While current systems represent significant progress for organic electrochromics, it is necessary expand the structural diversity of these materials while simultaneously reducing hazards associated with synthetic protocols. With considerations mind, a family 1,4-dihydropyrrolo[3,2-b]pyrrole (DHPP) chromophores varying functionalities along 2,5-axis was envisioned accomplish goals. After predicting different absorbance traits oxidized molecules time-dependent density functional theory, DHPP peripheral were synthesized single aerobic step via an iron-catalyzed multicomponent reaction and characterized chromophores. In solution, absorb ultraviolet region electromagnetic spectrum, resulting color-neutral L*a*b* color coordinates ∼100, 0, 0. Upon chemical oxidation, each molecule transitions at various points across visible spectrum based on extent electron-donating ability can display five distinct colors. Importantly, are redox-active switching capabilities applied potential. conjunction building fundamental insights into molecular design chromophores, results simplicity DHPPs make them compelling color-controlled electrochromes.

Language: Английский

Polypyrrole Derivatives: Preparation, Properties and Application DOI Open Access
Lu Hao, Changyi Dong, Demei Yu

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(16), P. 2233 - 2233

Published: Aug. 6, 2024

Polypyrrole (PPy) has attracted widespread attention due to its excellent environmental stability, high conductivity, simple synthesis, good biocompatibility, and reversible redox properties. PPy derivatives not only inherit the advantages of polypyrrole, but also have some unique The side N-site substitution can yield polymers with solubility, it endows special functionalities by controlling introduced functional groups. performance copolymers be adjusted type monomer or polymerization ratio. In this review, an overview different types, main preparation methods, application prospects reported date are summarized presented. current challenges future opportunities in research area prospected.

Language: Английский

Citations

8
Diversifying peripheral aromatic units of pyrrolo[3,2-b]pyrrole-containing conjugated polymers and the resulting optoelectronic properties DOI
Graham S. Collier,

Julien T. Layton,

Perry Skiouris

et al.

Journal of Materials Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Pyrrolo[3,2- b ]pyrrole represents a synthetically-simple conjugated scaffold that enables accessing polymers with tailorable properties useful for organic electronics.

Language: Английский

Citations

0
Expanding Color Control of Anodically Coloring Electrochromes Based on Electron-Rich 1,4-Dihydropyrrolo[3,2-b]pyrroles DOI Creative Commons

Allison M. Hawks,

Lillian M. Daniel,

Valentino S. Sorto

et al.

ACS Applied Optical Materials, Journal Year: 2024, Volume and Issue: 2(6), P. 1235 - 1244

Published: June 12, 2024

Anodically coloring electrochromes have received attention in recent years as high-contrast alternatives to cathodically due their superior optical contrast during electrochemical switching. While current systems represent significant progress for organic electrochromics, it is necessary expand the structural diversity of these materials while simultaneously reducing hazards associated with synthetic protocols. With considerations mind, a family 1,4-dihydropyrrolo[3,2-b]pyrrole (DHPP) chromophores varying functionalities along 2,5-axis was envisioned accomplish goals. After predicting different absorbance traits oxidized molecules time-dependent density functional theory, DHPP peripheral were synthesized single aerobic step via an iron-catalyzed multicomponent reaction and characterized chromophores. In solution, absorb ultraviolet region electromagnetic spectrum, resulting color-neutral L*a*b* color coordinates ∼100, 0, 0. Upon chemical oxidation, each molecule transitions at various points across visible spectrum based on extent electron-donating ability can display five distinct colors. Importantly, are redox-active switching capabilities applied potential. conjunction building fundamental insights into molecular design chromophores, results simplicity DHPPs make them compelling color-controlled electrochromes.

Language: Английский

Citations

2