113087-89-1Relevant articles and documents
Reversible Switching between Phosphorescence and Fluorescence in a Unimolecular System Controlled by External Stimuli
Xu, Jing,Feng, Hui,Teng, Hao,Chen, Guilin,Pan, Saifei,Chen, Jianrong,Qian, Zhaosheng
supporting information, p. 12773 - 12778 (2018/09/06)
Manipulation of the emission properties of pure organic molecules through external stimuli is attractive but challenging. Herein, a dual-emissive hexathiobenzene-based molecule is reported with significant aggregation-induced phosphorescence characteristics, and demonstrates reversible switching among blue, green, and yellow phosphorescence by controlling molecular aggregation state or protonation state. Variation of solvent or pH value manipulates the interconversion between fluorescence and phosphorescence, while the change in protonation state in organic solvent switches two short-lived emissions in a controllable manner. Such a controlled manipulation is achieved by the rational design of combining a twisted structure and the proper arrangement of energy gaps among different excited states. This work provides a new design principle for organic molecules with efficient room-temperature phosphorescence and tunable singlet–triplet emissive properties, and contributes to the design and development of smart materials and intelligent optoelectronic devices.
A multivalent PyBox asterisk ligand
Aubert, Catherine,Dallaire, Carol,Gingras, Marc
, p. 5355 - 5358 (2008/12/21)
A discrete multivalent PyBox ligand was investigated. An efficient synthesis and the properties of 1 are reported (UV-visible, cyclic voltammetry, NMR, MALDI-Tof). It incorporates a sulfur-rich persulfurated benzene core which was compatible with a metal-
Redox properties of polythiarene derivatives. A novel class of electron acceptors
Tucker, James H. R.,Gingras, Marc,Brand, Holger,Lehn, Jean-Marie
, p. 1303 - 1308 (2007/10/03)
A series of polythiaarene derivatives has been synthesized and their redox properties studied.The charge stabilizing effect of the aryl sulfide groups that surround the central aromatic core promotes nucleophilic substitution and markedly facilities radical anion formation, leading to remarkably mild reduction potentials.Polythiaarene units may thus serve as electron accepting sites for the development of electron rich componenets for molecular electzronic devices.