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Nonlinear Photochromic Properties in a Perylene-Substituted Rhodamine Spirolactam

Researchers develop a novel design approach to achieve nonlinear photochromism using easy-to-synthesize rhodamine spirolactam derivatives Nonlinear photochromic compounds that utilize low-energy light have received significant attention. They result in enhanced contrast and spatial resolution in photochromic reactions and allow multiple photofunctions in single molecules. However, they require complex molecular design, which limits their wide applicability. Now, researchers have achieved nonlinear photochromism using low-energy light in an easily synthesized perylene-substituted rhodamine spirolactam derivative, offering a novel design approach for simpler photofunctional materials. ....

Yoichi Kobayashi , Department Of Applied Chemistry , College Of Life Sciences At Ritsumeikan University , Angewandte Chemie International Edition On , Professor Yoichi Kobayashi , Applied Chemistry , Life Sciences , Ritsumeikan University , Angewandte Chemie International Edition ,

Rhodamine Spirolactam Shows Nonlinear Photochromic Traits

Rhodamine Spirolactam Shows Nonlinear Photochromic Traits
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Yoichi Kobayashi , Department Of Applied Chemistry , Angewandte Chemie International Edition On , College Of Life Sciences At Ritsumeikan University , Professor Yoichi Kobayashi , Applied Chemistry , Life Sciences , Ritsumeikan University , Angewandte Chemie International Edition ,

Novel design approach achieves nonlinear photochromism using easy-to-synthesize rhodamine spirolactam derivatives

Photochromic compounds, which change their color when exposed to light, have been widely used as photo switches to control different properties of materials. Nonlinear photochromic compounds, characterized by a nonlinear response to the intensity of incident light, have attracted special attention among researchers as the nonlinearity leads to enhanced contrast and improved spatial resolution in photochromic reactions. ....

Yoichi Kobayashi , Genki Kawai , Angewandte Chemie International Edition , Angewandte Chemie International Edition On , Department Of Applied Chemistry , College Of Life Sciences At Ritsumeikan University , Professor Yoichi Kobayashi , Applied Chemistry , Life Sciences , Ritsumeikan University , Nonlinear Photochromic Reaction Based , Free Triplet , Triplet Annihilation , Substituted Rhodamine Spirolactam , Angewandte Chemie International ,

Study shows alkyl-aromatic hybrid micelles can form from emergent umbrella-shaped molecules

Micelles assemble in water from amphiphilic molecules, composed of hydrophilic and hydrophobic frameworks. They can be found all around us, for example in soaps, detergents, and shampoos. Their main application is the water-solubilization of insoluble molecules through encapsulation into hydrophobic cavities. ....

Kei Kondo , Lorenzo Catti , Masaya Endo , Michito Yoshizawa , Tokyo Tech Laboratory For Chemistry , Tokyo University Of Science , Angewandte Chemie International Edition , Angewandte Chemie International Edition On , Tokyo Tech , Life Science , Tokyo University , Shaped Amphiphiles , Internal Alkylation , Aromatic Micelle , Its Impact , Cavity Features , Angewandte Chemie International ,