88444-81-9Relevant articles and documents
Aggregation induced emission-emissive stannoles in the solid state
Lork, Enno,Ramirez Y Medina, Isabel-Maria,Rohdenburg, Markus,Staubitz, Anne
, p. 9775 - 9778 (2020/09/07)
The optoelectronic and structural properties of six stannoles are reported. All revealed extremely weak emission in solution at 295 K, but intensive fluorescence in the solid state with quantum yields (ΦF) of up to 11.1% in the crystal, and of up to 24.4% (ΦF) in the thin film.
Pluripotent Features of Doubly Thiophene-Fused Benzodiphospholes as Organic Functional Materials
Higashino, Tomohiro,Ishida, Keiichi,Sakurai, Tsuneaki,Seki, Shu,Konishi, Tatsuki,Kamada, Kenji,Imahori, Hiroshi,Imahori, Hiroshi
, p. 6425 - 6438 (2019/04/26)
Linear ladder-type π-conjugated molecules have attracted much interest because of their intriguing physicochemical properties. To modulate their electronic structures, an effective strategy is to incorporate main-group elements into ladder-type π-conjugated molecules. In line with this strategy, a variety of ladder-type π-conjugated molecules with main-group elements have been synthesized to explore their potential utility as organic functional materials. In this context, phosphole-based π-conjugated molecules are highly attractive, owing to their unique optical and electrochemical properties, which arise from the phosphorus atom. Herein, the synthesis and physicochemical properties of doubly thiophene-fused benzodiphospholes, as a new class of phosphole-based ladder-type π-conjugated molecule, are reported. Systematic investigations into the physicochemical properties of doubly thiophene-fused benzodiphospholes revealed their pluripotent features: intense near-infrared fluorescence, excellent two-photon absorption property, and remarkably high electron-transporting ability. This study demonstrates the potential utility of doubly thiophene-fused benzodiphospholes as organic functional materials for biological imaging, nonlinear optics, organic transistors, and organic photovoltaics.
Electron-density distribution tuning for enhanced thermal stability of luminescent gold complexes
Yamada, Shigeyuki,Yamaguchi, Shun,Tsutsumi, Osamu
, p. 7977 - 7984 (2017/08/17)
Structure-property relationships of newly synthesized luminescent gold complexes were examined from the viewpoint of material applications. In particular, we investigated the effect of controlling the molecular electron-density distribution by introducing trifluoromethyl substituents into the complexes. The structures of the molecular aggregates were not affected by the trifluoromethyl substituents, as all the complexes formed antiparallel dimers in the crystal state. Moreover, we found that the trifluoromethyl substituents enhanced the thermal stability of the complexes without significantly changing the luminescence behaviour. Thus, while the thermal stability of these materials depends on the molecular structure, i.e. the molecular electron-density distribution, the luminescence behaviour mainly depends on the molecular aggregate structure. These results suggest that various material properties, e.g. luminescence colour and thermal stability, can be controlled independently by tuning the structures of molecules and molecular aggregates using trifluoromethyl substituents.
