96515-25-2

Basic information

• Product Name: 4-BROMO-2-FLUORO-4'-PENTYLBIPHENYL
• Synonyms: 4-BROMO-2-FLUORO-4'-PENTYLBIPHENYL;4-Bromo-2-fluoro-4'-pentyl-1,1'-biphenyl
• CAS NO: 96515-25-2
• Molecular Formula: C17H18BrF
• Molecular Weight: 0
• Mol File: 96515-25-2.mol
• Article Data: 5

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4-BROMO-2-FLUORO-4'-PENTYLBIPHENYL(CAS DataBase Reference)
• NIST Chemistry Reference: 4-BROMO-2-FLUORO-4'-PENTYLBIPHENYL(96515-25-2)
• EPA Substance Registry System: 4-BROMO-2-FLUORO-4'-PENTYLBIPHENYL(96515-25-2)

Safety Data

• Hazardous Substances Data: 96515-25-2(Hazardous Substances Data)

Upstream product

• 96515-27-4 4'-bromo-2'-fluoro-4-pentanoylbiphenyl 
• 41604-19-7 1-bromo-3-fluoro-4-phenylbenzene 
• 638-29-9 n-valeryl chloride 
• 105931-73-5 1-bromo-3-fluoro-4-iodobenzene 
• 121219-12-3 (4-pentylphenyl)boronic acid 

Downstream Products

• 95759-51-6 2'-fluoro-4-n-pentyl-4'-n-propyl-p-terphenyl 

Relevant articles and documents

Liquid crystal composition and liquid crystal display device

A liquid crystal composition satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat, or has a suitable balance regarding at least two of the characteristics. The composition contains a specific compound having high stability to ultraviolet light as a first component, and a liquid crystal display device includes the composition. The composition may contain a specific compound having large negative dielectric anisotropy as a second component, a specific compound having high maximum temperature or small viscosity as a third component, and a specific compound having a polymerizable group as an additive component.

Compounds containing a fluorobiphenylyl group

Novel terphenyls having a relatively high clearing point and which are suitable for use in liquid crystal materials or in the preparation of compounds for use in such material are characterised by a formula: STR1 wherein: R1 is selected from H, alkyl, alkoxy, alkylcarbonyl, alkylcarbonyloxy and alkoxycarbonyloxy; R2 is selected from H, alkyl, alkoxy; X1 is selected from H and fluorine; X2 is selected from H and fluorine; and STR2 is selected from STR3 and STR4 provided that one of X1 and X2 is fluroine. Compounds wherein STR5 is STR6 or STR7 are generally useful as liquid crystal compounds.

Synthesis and Evaluation of Some 4,4''-Disubstituted Lateral Fluoro-1,1':4',1''-terphenyls

A number of laterally fluorinated 4,4''-di-n-alkyl-, 4,4''-di-n-alkoxy- and 4-n-alkyl-4''-n-alkoxy-1,1':4',1''-terphenyls of structure (I) have been synthesised, with the lateral fluoro-substituent in the central benzene ring. The nematic and smectic thermal stabilities for all three series of compounds, have been examined.A typical example is (I), X = n-C5H11, Y = n-C3H7, C-N 50 deg C and N-I 140.6 deg C.For the 4,4''-di-n-alkyl-1,1':4',1''-terphenyls, the position of the lateral fluoro-substituent with respect to the longest n-alkyl chain is found to be important in determining the smectic behaviour of this class of compound.By using a combination of optical microscopy, X-ray diffraction and miscibility studies, the complex smectic behaviour of the higher homologues of this series has also been investigated.A comparison of the liquid crystal behaviour of the laterally fluorinated terphenyls of structure (I) with their non-fluorinated analogues is also given.A selected number of these compounds, have been further examined to assess their usefulness as high TN-I additives for multiplexed mixtures used in electro-optic display devices.