The author of 《Hexagonal array formation by intermolecular halogen bonding using a binary blend of linear building blocks: STM study》 were Kikkawa, Yoshihiro; Nagasaki, Mayumi; Koyama, Emiko; Tsuzuki, Seiji; Hiratani, Kazuhisa. And the article was published in Chemical Communications (Cambridge, United Kingdom) in 2019. SDS of cas: 2510-22-7 The author mentioned the following in the article:
Hexagonal arrays were fabricated via intermol. halogen bonding between two linear mol. building blocks in a bicomponent blend. The substitution position of the pyridine N atom involved in the halogen bond plays an important role in the formation of the hexagonal structures. The results came from multiple reactions, including the reaction of 4-Ethynylpyridine(cas: 2510-22-7SDS of cas: 2510-22-7)
4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridines form stable salts with strong acids. Pyridine itself is often used to neutralize acid formed in a reaction and as a basic solvent. SDS of cas: 2510-22-7