The author of 《Halogen Bonding Helicates Encompassing Iodonium Cations》 were Vanderkooy, Alan; Gupta, Arvind Kumar; Foeldes, Tamas; Lindblad, Sofia; Orthaber, Andreas; Papai, Imre; Erdelyi, Mate. And the article was published in Angewandte Chemie, International Edition in 2019. SDS of cas: 626-05-1 The author mentioned the following in the article:
The first halonium-ion-based helixes were designed and synthesized using oligo-aryl/pyridylene-ethynylene backbones that fold around reactive iodonium ions. Halogen bonding interactions stabilize the iodonium ions within the helixes. Remarkably, the distance between two iodonium ions within a helix is shorter than the sum of their van der Waals radii. The helical conformations were characterized by X-ray crystallog. in the solid state, by NMR spectroscopy in solution and corroborated by DFT calculations The helical complexes possess potential synthetic utility, as demonstrated by their ability to induce iodocyclization of 4-penten-1-ol. In the experiment, the researchers used 2,6-Dibromopyridine(cas: 626-05-1SDS of cas: 626-05-1)
2,6-Dibromopyridine(cas: 626-05-1) 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: 626-05-1