HPLC of Formula: 523-27-3In 2022 ,《Four- and two-armed hetero porphyrin dimers: their specific recognition and self-sorting behaviours》 appeared in Organic & Biomolecular Chemistry. The author of the article were Ueda, Masahiro; Kimura, Masaki; Miyagawa, Shinobu; Naito, Masaya; Takaya, Hikaru; Tokunaga, Yuji. The article conveys some information:
In this study we self-assembled the four-armed porphyrin hetero dimer capsule Cap4, stabilized through amidinium-carboxylate salt bridges, in CH2Cl2 and CHCl3. The dimer capsule Cap4 was kinetically and thermodynamically more stable than the corresponding two-armed dimer Cap2. The number of arms strongly influenced their recognition behavior; guests possessing small aromatic faces (e.g., 1,3,5-trinitrobenzene) preferred residing in the cavity of the two-armed capsule Cap2, rather than in Cap4, both thermodynamically and kinetically; in contrast, large aromatic guests (e.g., 9,10-dibromoanthracene) were encapsulated predominantly by Cap4 because of favorable entropic effects. The number of arms enabled self-sorting behavior of the dimer formation; complexation studies using an equimolar mixture of the four porphyrin constituents of the two capsules revealed the quant. formation of the corresponding dimers Cap2 and Cap4. Furthermore, we examined the specific mol. recognition of Cap2 and Cap4; NMR experiments of mixtures of Cap2 and Cap4 in the presence of favorable guests for Cap2 and Cap4 revealed that these guest mols. were encapsulated selectively by their preferred hosts. In the experimental materials used by the author, we found 9,10-Dibromoanthracene(cas: 523-27-3HPLC of Formula: 523-27-3)
9,10-Dibromoanthracene(cas: 523-27-3) is a dibrominated polycyclic aromatic hydrocarbon (PAH). 9,10-Dibromoanthracene is often used as an energy acceptor and activator in reactions that produce chemiluminescence.HPLC of Formula: 523-27-3
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary