Multi-Responsive Aryl (Indolyl) Methane as a Redox-Controlled Fluorescent Switch

摘要

A series of symmetrical and unsymmetrical (indolyl)methanes were synthesized using the Ball milling methodology. The redox switching of the prepared compounds was studied by exploiting their multi-responsive behavior towards oxidants (light/oxygen), reductants (NaBH4, hydrogen with Pd/C or palladium-doped magnetic nanoparticles) and electrochemical modulation. Coumarin-derived (indolyl)methane exhibited distinct color variation and emission On/Off during the redox switching which could be useful in materials/biomaterials applications. Overall, this paper describes the design, synthesis and demonstration of the multi-responsive behavior of (indolyl)methanes towards redox switching.