Guagnini, Francesca; Pedrini, Alessando; Dalcanale, Enrico; Massera, Chiara published their research in Chemistry – A European Journal in 2021. The article was titled 《Multidentate, V-Shaped Pyridine Building Blocks as Tectons for Crystal Engineering》.Name: 2,6-Dibromopyridine The article contains the following contents:
The formation of supramol. structural units through self-assembly is a powerful method to design new architectures and materials endowed with specific properties. With the aim of adding a group of versatile tectons to the toolkit of crystal engineers, 4 new V-shaped building blocks characterized by an aryl acetylene scaffold comprising 3 substituted pyridine rings connected by 2 triple bonds were have devised and synthesized. The judicious choice of different substituents on the pyridine rings provides these tectons with distinctive steric, electrostatic and self-assembly properties, which influence their crystal structures and their ability to form co-crystals. Co-crystals of the tectons with tetrafluorodiiodobenzene were obtained both via traditional and mechanochem. crystallization strategies, proving their potential use in crystal engineering. The energetic contributions of the supramol. interactions at play in the crystal lattice also were evaluated to better understand their nature and strength and to rationalize their role in designing mol. crystals. After reading the article, we found that the author used 2,6-Dibromopyridine(cas: 626-05-1Name: 2,6-Dibromopyridine)
2,6-Dibromopyridine(cas: 626-05-1) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. Name: 2,6-Dibromopyridine