On the balance between nematic and smectic phases in 2′,3′-difluoro-4,4″-dialkyl-p-terphenyls was written by Wachala, Agata;Pytlarczyk, Marta;Kula, Przemyslaw. And the article was included in Liquid Crystals in 2019.Formula: C6H3F2I This article mentions the following:
The full homologous series of 2′,3′-difluoro-4,4”-dialkyl-p-terphenyls, where alkyl chains are from Me to nonyl length, have been synthesized and mesomorphic properties, phase transition temperatures and enthalpies were measured. The influence of the terminal chain length on thermal mesophase range, phase sequence has been analyzed and discussed. The odd-even and sym.-non-sym. effects have also been studied and its influence on smectic to nematic balance was analyzed. In the experiment, the researchers used many compounds, for example, 1,2-Difluoro-3-iodobenzene (cas: 64248-57-3Formula: C6H3F2I).
1,2-Difluoro-3-iodobenzene (cas: 64248-57-3) belongs to iodide derivatives. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics. In the chemical industry, alkyl iodides serve as excellent alkylating agents and, specifically, methyl iodide is used as a methylating agent in the synthesis of various pharmaceutical drugs.Formula: C6H3F2I
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com