Liquid crystals for IR: Part II synthesis and properties of perfluoroalkyl- or perfluoroalkoxy-terminated tolanes was written by Harmata, Piotr;Herman, Jakub;Kula, Przemyslaw. And the article was included in Liquid Crystals in 2020.COA of Formula: C6H3F2I This article mentions the following:
Several homologous series of laterally halogenated and perfluoroalkyl- or perfluoroalkoxy-terminated tolanes derivatives were synthesized. Obtained compounds were divided into three families, i.e. tolanes, phenyltolanes, bistolanes and their mesomorphic properties, phase transition temperatures and enthalpies were determined The influence of the length of the core, type and position of substituents in the mol. core has been analyzed. The lack of aliphatic protons in mol. structure generates unique IR properties of presented materials and their mixtures In the experiment, the researchers used many compounds, for example, 1,2-Difluoro-3-iodobenzene (cas: 64248-57-3COA of Formula: C6H3F2I).
1,2-Difluoro-3-iodobenzene (cas: 64248-57-3) belongs to iodide derivatives. Organic iodides are organic compounds containing a carbon-iodine (C-I) bond. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. A typical method for synthesis of aromatic iodides is diazotization of primary aromatic amines followed by treatment of potassium iodide. Aliphatic alcohols are converted to alkyl iodides by treating with hydrogen iodide.COA of Formula: C6H3F2I
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com