The influence of bulkiness of the amino acid residue on the liquid crystalline behaviours of some fluorinated compounds. (21st November 2020)

• Record Type: Journal Article
• Authors: Chu, Jinming; Wu, Limin; Guo, Yongmin; Li, Yi; Li, Baozong; Yang, Yonggang
• Is Part Of: Molecular crystals and liquid crystals. Volume 711(2020)
• Page Start: 8
• Page End: 17
• Publication Date: 2020-11-21
• Subjects: Amino acid -- chiral -- hydrogen bonding -- liquid crystal; Molecular crystals -- Periodicals; Liquid crystals -- Periodicals; Liquid crystals; Molecular crystals; Periodicals; 548
• DOI: 10.1080/15421406.2020.1852761
• Languages: English
• ISSNs: 1542-1406

Abstract

Abstract: A series of fluorinated compounds with an amino acid residue are synthesized, which show smectic phases. The bulkiness of the side group of the amino acid residue plays an important role in the temperature ranges of the mesophases and clearing points. The compound with a glycine residue exhibits the widest mesomorphic temperature range. However, the compound with a cyclohexylglycine residue exhibits only a monotropicSmA phase. The phenyl groups of the amino acid residues also strongly affect the formation of mesophase. With decreasing the distance between the chiral center and the phenyl group, the temperature range of the mesophase decreases.