Chemistry is an experimental science, Formula: C20H14O2, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 18531-99-2, Name is (S)-[1,1′-Binaphthalene]-2,2′-diol
A pair of chiral R/S-TPE-BINOL derivatives with dark resonance energy transfer was facilely synthesized by coupling of a tetraphenylethylene (TPE) derivative, BODIPY dye and R/S-1,1?-bi-2-binaphthol (BINOL), where TPE not only was selected as a dark energy donor, but also can endow the target molecules with aggregation-induced emission (AIE) characteristics; BODIPY served as an energy acceptor; BINOL, one of the most popular axially chiral compounds, was employed as a chiral source. Due to the chiral feature of R/S-TPE-BINOL, obvious CD and CPL signals were observed in the solution and aggregated states. Generally, for organic dyes, high dissymmetric factor (gem) values are often accompanied by low emission efficiencies. To improve emission efficiency, an effective strategy of dark through-bond energy transfer was adopted. This method makes it possible to avoid fluorescence leakage originating from donor emission. The energy of TPE can be completely transferred to the BODIPY unit before non-radiative relaxation with an energy transfer efficiency of up to 99% and a high quantum yield of 91%. Remarkably, these enantiomers could self-assemble into bowl-like hollow microspheres in a mixed solvent of THF/water to give a stable fluorescent suspension with tunable emission from the green to yellow region. Moreover, TPE-BOD was selected as the fluorescent probe for specific staining of lipid droplets in living cells.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. Formula: C20H14O2, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 18531-99-2, in my other articles.
Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI