Konovalova, Irina S.; Shishkina, Svitlana V.; Kobzev, Dmytro; Semenova, Olha; Tatarets, Anatoliy published their research in Acta Crystallographica, Section E: Crystallographic Communications in 2021. The article was titled 《Crystal structures and Hirshfeld analysis of 4,6-dibromoindolenine and its quaternized salt》.SDS of cas: 626-40-4 The article contains the following contents:
4,6-Dibromo-2,3,3-trimethyl-3H-indole, C11H11Br2N, exists as a neutral mol. in the asym. unit. The asym. unit of 4,6-dibromo-2,3,3-trimethyl-3H-indol-1-ium iodide, C12H14Br2N+·I-, contains one organic cation and one iodine anion. The pos. charge is localized on the quaternized nitrogen atom. In the crystal, mols. of 4,6-dibromoindolenine are linked by C-Br···π halogen bonds, forming zigzag chains propagating in the [001] direction. The mols. of the salt form layers parallel to the (010) plane where they are linked by C-H···Br hydrogen bonds, C-Br···Br and C-Br···I halogen bonds. The Hirshfeld surface anal. and two dimensional fingerprint plots were used to analyze the intermol. contacts present in both crystals. The results came from multiple reactions, including the reaction of 3,5-Dibromoaniline(cas: 626-40-4SDS of cas: 626-40-4)
3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Amines have a free lone pair with which they can coordinate to metal centers. Amine–metal bonds are weaker because amines are incapable of backbonding, but they are still important for sensing applications.While stronger than hydrogen bonds, amine–metal bonds are still weaker than both covalent and ionic bonds.SDS of cas: 626-40-4
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary