116831-32-4

Basic information

• Product Name: 4-bromo-2-fluoro-4'-(octyloxy)-1,1'-biphenyl
• Synonyms: 4-bromo-2-fluoro-4'-(octyloxy)-1,1'-biphenyl
• CAS NO: 116831-32-4
• Molecular Formula: C20H24BrFO
• Molecular Weight: 379.3063632
• Mol File: 116831-32-4.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4-bromo-2-fluoro-4'-(octyloxy)-1,1'-biphenyl(CAS DataBase Reference)
• NIST Chemistry Reference: 4-bromo-2-fluoro-4'-(octyloxy)-1,1'-biphenyl(116831-32-4)
• EPA Substance Registry System: 4-bromo-2-fluoro-4'-(octyloxy)-1,1'-biphenyl(116831-32-4)

Safety Data

• Hazardous Substances Data: 116831-32-4(Hazardous Substances Data)

Upstream product

• 111-83-1 1-bromo-octane 
• 116831-27-7 4-hydroxy-2'-fluoro-4'-bromobiphenyl 
• 116831-48-2 4'-bromo-2'-fluorobiphenyl-4-yl ethanoate 

Relevant articles and documents

P-terphenyl derivatives and liquid crystalline compositions

New p-terphenyl derivatives useful as components for preparing practical ferroelectric liquid crystalline compositions and excellent in chemical stability, as well as liquid crystalline compositions containing at least one of the p-terphenyl derivatives.

Synthesis and Liquid Crystal Behaviour of Further 4,4"-Disubstituted 2'-Fluoro-1,1':4',1"-Terphenyls

Further to earlier work on the liquid crystal properties of fluoro-1,1':4',1"-terphenyls we have now extended this series to include terminally fluoro- and cyano-substituted 2'-fluoro-1,1':4',1"-terphenyls, chiral 2'-fluoro-1,1':4',1"-terphenyls, and esters derived from 2'-fluoro-1,1':4',1"-terphenyls and incorporating the alkylcyclobutyl group.The preparations and transition temperatures for these series of compounds are presented and their transition temperatures and mesophase types are discussed.An interesting result from this work was the appearence of an S*C phase for one chiral homologue and of SC phases for the esters incorporating the alkylcyclobutyl group.The SC formation is attributed to the presence of the fluoro-substituent.Keywords: terphenyls, fluoroterphenyls, smectic C phases, cyclobutyl esters.

The Effect of Lateral Fluorosubstitution on the Liquid Crystalline Properties of some 4-n-Alkyl-, 4-n-Alkoxy- and Related 4-Substituted-4'-cyanobiphenyls

The syntheses of several 4-n-alkyl-, 4--, 4-- and 4-n-alkoxy-4'-cyano-2'-fluorobiphenyls and -4'-cyano-2-fluorobiphenyls are presented and the transition temperatures for these compounds are reported and discussed.In the alkylkcyanobiphenyls, a 2-fluoro-substituent causes a greater depression of TN-I (35-39 deg C) than a 2'-fluoro-substituent (13-18 deg C) and a similar situation arises for the cyclohexylethyl compounds.The fluoro-substituted alkoxy-compounds also give two series with depressions of TN-I of 34-41 deg C for the 2-fluoro- and 15-20 deg C for the 2'-fluoro-compounds.In non-cyano systems, 2- and 2'-fluoro-substituents in biphenyl derivatives give similar depressions in TN-I, which are larger than found in cyano systems, and the different depressions for the fluoro-substituted cyano compounds are thought to arise because of the effect of the fluorine on the anti-parallel correlations of the parent systems.The effects on smectic and nematic thermal stabilities are qualitatively similar, but are usually greater for smectic transitions.A comparison is made between 4-trans-cyclohexylethyl and 4-phenylethyl units in the 4'-cyano- and 4'-bromo-2'-fluorobiphenyls.