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338648

Sigma-Aldrich

4′-Hexyl-4-biphenylcarbonitrile

liquid crystal (nematic), 98%

Synonym(s):

4′-n -Hexyl-4-cyanobiphenyl, 4′-Hexyl-4-biphenylcarbonitrile, 4′-Hexyl-4-cyanobiphenyl, 4′-Hexyl[1,1′-biphenyl]-4-carbonitrile, 4-Cyano-4′-n -hexylbiphenyl, 4-Cyano-4′-hexyl-1,1′-biphenyl, 4-Cyano-4′-hexylbiphenyl, 4-Hexyl-4′-cyanobiphenyl, 4-Hexyl-4′-cyanodiphenyl, p -Hexyl-p ′-cyanobiphenyl

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About This Item

Linear Formula:
CH3(CH2)5C6H4C6H4CN
CAS Number:
41122-70-7
Molecular Weight:
263.38
EC Number:
255-228-5
MDL number:
MFCD00075144
UNSPSC Code:
12352103
PubChem Substance ID:
24860558
NACRES:
NA.23

assay

98%

form

liquid crystal (nematic)

SMILES string

CCCCCCc1ccc(cc1)-c2ccc(cc2)C#N

InChI

1S/C19H21N/c1-2-3-4-5-6-16-7-11-18(12-8-16)19-13-9-17(15-20)10-14-19/h7-14H,2-6H2,1H3

InChI key

VADSDVGLFDVIMG-UHFFFAOYSA-N

General description

4′-Hexyl-4-biphenylcarbonitrile belongs to the class of low molecular weight liquid crystals (LCs). Optical properties of LCs can be controlled thermally. It can be rendered opaque to transparent state by thermal switching. This effect appears on account of birefringence feature of LCs. Low molecular weight LCs show high, and strongly dependence on temperature as well as possesses higher solubility in polymer matrices. It also exhibits a strong dipole moment.[1]

Application

  • Used in thermoresponsive meso/nanostructured PS-b-PEO block copolymer-dispersed liquid crystal.[1]
  • 4′-hexyl-4-biphenylcarbonitrile, 4′-octyloxy-4-biphenylcarbonitrile and their composite liquid crystals were studied for dielectric properties.[2]
Proposed applications are in the field of
  • thermo- and electro optical devices (e.g. optical shutters, smart windows, optical sensors,memories and flexible display devices),
  • n phase array optics (e.g. as switchable birefringent phase shifters).[1]

hcodes

H413

Hazard Classifications

Aquatic Chronic 4

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
BCCB2017
BCBZ4281
BCBW7376
BCBV0461
BCBR1224V

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Conductance and Dielectric Anisotropy Properties of 4'-Hexyl-4-biphenylcarbonitrile and 4'-Octyloxy-4-biphenylcarbonitrile Liquid Crystals and Their Composite.
Ozgan S, et al.
Asian Journal of Research in Chemistry, 23(7), 3247-3251 (2011)
Thermoresponsive meso/nanostructured thermosetting materials based on PS-b-PEO block copolymer-dispersed liquid crystal: Curing behavior and morphological variation.
Tercjak A, et al.
Acta Materialia, 56(18), 5112-5122 (2008)
Hiroshi Kakiuchida et al.
ACS applied materials & interfaces, 11(21), 19404-19412 (2019-05-08)
A simple nonuniform irradiation method for photopolymerization-induced phase separation (PPIPS) was developed to produce unconventional mesoscale domain structures composed of liquid crystal (LC) and reactive mesogen (RM) phases. The LC/RM phase formations and their molecular orientation ordering through PPIPS were

Questions

  1. Give the phase transition temperatures & name the different phases of liquid crystalline compound 338648 4'-Hexyl-4-biphenyl carbonitrile.

    1 answer

    1. The phase transition temperatures for this compound have not been determined. See the link below to the PubChem file for this material. There are a number of references and physical properties listed that may be of interest:
      https://pubchem.ncbi.nlm.nih.gov/compound/38764.

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