Synthesis of unsymmetric triphenylene discotic liquid crystals with a semi-fluorinated chain and the influence of fluorophobic effect on mesogenic behavior

• Published in: Science China. Chemistry Vol. 52; no. 8; pp. 1244 - 1252
• Main Authors: Yang, GaoFan, Zhao, KeQing, Yu, WenHao, Hu, Ping, Wang, BiQin
• Format: Journal Article
• Language: English
• Published: Heidelberg SP Science in China Press 01.08.2009; Springer Nature B.V
• Subjects: chain; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; columnar; crystal; discotic; effect; ester; Fluorination; fluorophobic; Hydrocarbons; liquid; Liquid crystals; Melting points; Mesophase; molecular; Molecular chains; NMR; Nuclear magnetic resonance; Optical microscopy; Room temperature; semi-fluorinated; Symmetry; triphenylene; columnar mesophase; triphenylene; molecular symmetry; semi-fluorinated ester chain; fluorophobic effect; discotic liquid crystal

The fluorophobic effect of the semi-fluorinated chain of discotic molecules efficiently improves the stability of columnar mesophase.Low symmetric discogens exhibit decreased melting points and wide mesophase ranges.A series of triphenylene derivatives 1,C18H6(OCnH2n+1)4(OMe)(O2CC2H4C6F13),and their...