122265-74-1

Upstream product

• 2105-94-4 4-bromo-2-fluorophenol 
• 143-15-7 1-dodecylbromide 
• 367-12-4 2-fluorophenol 
• 119464-94-7 1-(dodecyloxy)-2-fluorobenzene 

Downstream Products

• 1206159-48-9 2-(3-fluoro-4-(dodecyloxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 
• 1206159-55-8 2-(4-dodecyloxy-3-fluorophenyl)-5-(dodecyloxymethyl)pyridine 
• 451-95-6 4-(dodecyloxy)-3-fluorobenzoic acid 
• 122265-75-2 4-(dodecyloxy)-3-fluorobenzonitrile 

Relevant academic research and scientific papers

Metallomesogens based on platinum(ii) complexes: Synthesis, luminescence and polarized emission

Two series of heteroleptic cyclometalated platinum(ii) complexes [(C nOppy)Pt(acac) and (CnOFppy)Pt(acac)] have been prepared. Their liquid-crystal and optophysical properties were studied, in which C nOppy is 2-(4-alkoxyp

Dicationic imidazolium-based ionic liquids and ionic liquid crystals with variously positioned fluoro substituents

A series of new dicationic imidazolium-based organic salts bearing fluoro substituents on the bent-core unit and/or linker benzene-ring positions has been synthesized and characterized. The properties of these salts, including transition and decomposition temperatures, and density were determined, indicating that their performance is strongly dependent on the positions of the fluoro substituents, the number of carbon atoms in the alkyl group, and the anion present. Examination by polarized optical microscopy showed that the four salts (compounds 4c, 7a, 7b and 8b, where the alkyl group was C 12H25-) were mesomorphic and these data were supported by DSC measurements.

Formation of columnar and cubic mesophases by calamitic molecules: Novel amphotropic biphenyl derivatives

Novel amphiphilic 4,4a?2-disubstituted biphenyl derivatives incorporating a hydrophilic 5,6-dihydroxy-3-oxahexyloxy group and a lipophilic chain have been synthesized by Pd-catalyzed cross-coupling reactions of phenyl boronic acids with 4-(5,6-dihydroxy-3-oxahexyloxy)bromobenzenes. The thermotropic and lyotropic mesomorphic behavior of these compounds were investigated by polarizing microscopy, by differential scanning calorimetry and by means of X-ray diffraction. Thereby the influence of the length of the alkyl chain, the type of connecting unit between alkyl-chain and the rigid core (O vs CH2), and the influence of lateral substituents and of the molecular chirality on the mesomorphic properties were investigated. All compounds have smectic A-phases as the high-temperature mesophases. Additionally, columnar phases were found for the long chain 4a?2-alkoxy-4-(5,6-dihydroxy-3-oxahexyloxy)biphenyls 2c-f without lateral substituent and for the 4-(5,6-dihydroxy-3-oxahexyloxy)-4a?2-dodecyloxy-3a?2-methylbiphenyl 10. All other laterally substituted biphenyl derivatives 9 and 11-15 and the 4a?2-alkyl substituted compound 8 display only smectic phases. The influence of protic solvents (formamide and ethylene glycol) on the liquid crystalline properties was studied. The columnar mesophases and SC-phases are destabilized by addition of protic solvents whereas the SA-phases are stabilized. Furthermore, binary mixtures of the amphiphilic biphenyl derivatives with each other have been investigated. Complete miscibility was found for the SA-phases and the columnar phases of the compounds 2c-f. However the columnar phases of the nonsubstituted compounds 2c-f and the 3a?2-methyl substituted derivative 10 do not have an uninterrupted miscibility. Cubic phases (Pn3m or Pn3) and additional columnar phases were induced in the contact regions. Thus, the same diversity of different kinds of mesophases as in lyotropic systems and in the thermotropic phase sequence of polycatenar compounds is found. It is proposed that the cubic and columnar mesophases of these rodlike molecules result from the collapse of the smectic layer structures into ribbons.

Chiral cyclohexyl compounds

The present invention describes liquid crystal compounds which are suitable for use in liquid crystal devices including those which exploit the electroclinic effect.

67. Ferroelectric Liquid Crystals. Laterally Substituted Phenyl Benzoates Incorporating a trans-1,4-Disubstituted Cyclohexane Ring.

About 65 diverse phenyl benzoates incorporating a trans-1,4-disubstituted cyclohexane ring and at least one lateral substituent have been synthesised.The dependence of the liquid-crystal transition temperatures of these materials on various lateral substituents (F, Cl, CN, and Br) in different positions of the esters has been investigated systematically.The influence of up to four F-atoms in various positions of a standard ester has been thoroughly studied and the optimum combination for a broad smectic C mesomorphic range established.In consequence, three homologous series incorporating the 4-alkoxy-2,3-difluorobenzoic-acid moiety were prepared.An additional C=C bond was introduced into the alkyl chain attached to the cyclohexane ring of some of these esters and the resulting modifications of the transition temperatures determined.Three ester series incorporating a lateral substituent and the optically active (+)-(S)-(1-methylphenyl)oxy substituent have also been synthesised, and similar effects have been observed.These materials can be used as important components of commercial chiral smectic C mixtures for electro-optic display device applications.