《Controlling the structure and photophysics of fluorophore dimers using multiple cucurbit[8]uril clampings》 was published in Chemical Science in 2020. These research results belong to Wu, Guanglu; Bae, Youn Jue; Olesinska, Magdalena; Anton-Garcia, Daniel; Szabo, Istvan; Rosta, Edina; Wasielewski, Michael R.; Scherman, Oren A.. Synthetic Route of C14H8Br2 The article mentions the following:
A modular strategy has been employed to develop a new class of fluorescent mols., which generates discrete, dimeric stacked fluorophores upon complexation with multiple cucurbit[8]uril macrocycles. The multiple constraints result in a “”static”” complex (remaining as a single entity for more than 30 ms) and facilitate fluorophore coupling in the ground state, showing a significant bathochromic shift in absorption and emission. This modular design is surprisingly applicable and flexible and has been validated through an investigation of nine different fluorophore cores ranging in size, shape, and geometric variation of their clamping modules. All fluorescent dimers evaluated can be photoexcited to atypical excimer-like states with elongated excited lifetimes (up to 37 ns) and substantially high quantum yields (up to 1). This strategy offers a straightforward preparation of discrete fluorophore dimers, providing promising model systems with explicitly stable dimeric structures and tunable photophys. features, which can be utilized to study various intermol. processes. In the part of experimental materials, we found many familiar compounds, such as 9,10-Dibromoanthracene(cas: 523-27-3Synthetic Route of C14H8Br2)
9,10-Dibromoanthracene(cas: 523-27-3) is synthesized by the bromination of anthracene. The bromination reaction is carried out at room temperature using carbon tetrachloride as a solvent. Using 80-85% anthracene as raw material, adding bromine to react for half an hour, the yield is 83-88%.Synthetic Route of C14H8Br2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary