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338680

Sigma-Aldrich

4′-Octyl-4-biphenylcarbonitrile

liquid crystal (nematic), 98%

Sinónimos:

4′-n -Octyl-4-cyanobiphenyl, 4′-Octyl-4-biphenylcarbonitrile, 4′-Octyl-4-cyanobiphenyl, 4′-Octyl[1,1′-biphenyl]-4-carbonitrile, 4-n -Octyl-4′-cyanobiphenyl, 4-Cyano-4′-n -octylbiphenyl, 4-Cyano-4′-octyl-1,1′-biphenyl, 4-Cyano-4′-octylbiphenyl, 4-Octyl-4′-cyanobiphenyl, p -n -Octyl-p ′-cyanobiphenyl, p -Cyano-p ′-octylbiphenyl, p -Octyl-p ′-cyanobiphenyl

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About This Item

Fórmula lineal:
CH3(CH2)7C6H4C6H4CN
Número de CAS:
52709-84-9
Peso molecular:
291.43
Número CE:
258-120-6
Número MDL:
MFCD00075146
Código UNSPSC:
12352103
ID de la sustancia en PubChem:
24860562
NACRES:
NA.23
En este momento no podemos mostrarle ni los precios ni la disponibilidad

Nivel de calidad

100

Ensayo

98%

Formulario

liquid crystal (nematic)

cadena SMILES

CCCCCCCCc1ccc(cc1)-c2ccc(cc2)C#N

InChI

1S/C21H25N/c1-2-3-4-5-6-7-8-18-9-13-20(14-10-18)21-15-11-19(17-22)12-16-21/h9-16H,2-8H2,1H3

Clave InChI

CSQPODPWWMOTIY-UHFFFAOYSA-N

Descripción general

4′-octyl-4-biphenylcarbonitrile (8CB) is a low molar mass liquid crystal (LC), which shows different liquid crystalline phases depending on temperature conditions. Under normal temperature conditions 8CB exists only as a bulk smectic-A phase.[1] LCs are responsive to subtle changes in temperature, shear, electric (or magnetic) fields, and the structure of solid surfaces with which they are in contact.[2]

Aplicación

Monolayer films of the LCs deposited onto highly ordered pyrolytic graphite, these self-assembled films display a wide variety of structural forms.[1]

Pictogramas

Exclamation mark
GHS07

Palabra de señalización

Warning

Clasificaciones de peligro

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Órganos de actuación

Respiratory system

Código de clase de almacenamiento

10 - Combustible liquids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

235.4 °F - closed cup

Punto de inflamabilidad (°C)

113 °C - closed cup

Equipo de protección personal

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

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Certificados de análisis (COA)

Lot/Batch Number
STBL2723
STBK5373
STBJ1731
STBG8551
STBG4807V

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Substrate defects and variations in interfacial ordering of monolayer molecular films on graphite.
Patrick DL, et al.
Langmuir, 10(1), 298-302 (1994)
Monirosadat Sadati et al.
Journal of the American Chemical Society, 139(10), 3841-3850 (2017-02-09)
Numerous applications of liquid crystals rely on control of molecular orientation at an interface. However, little is known about the precise molecular structure of such interfaces. In this work, synchrotron X-ray reflectivity measurements, accompanied by large-scale atomistic molecular dynamics simulations
Mechanism of molecular ordering in monolayer liquid crystal films.
Patrick DL, et al.
The Journal of Physical Chemistry, 100(20), 8478-8481 (1996)
Separation of nematic and smectic-A potential effects on solute ordering in a series of binary 6OCB-8OCB mixtures
Burnell EE, et al.
Canadian Journal of Chemistry, 89(7), 900-908 (2011)

Questions

1–3 of 3 Questions  

  1. Give the phase transition temperatures and name the different phases of this liquid crystalline compound 338680 4'-octyl-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/104289

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  2. What is the anisotropy refractive index and anisotropy electric permittivity for product 338680, 4´-Octyl-4-biphenylcarbonitrile?

    1 answer

    1. Literature values for the anisotropy refractive index and anisotropy electric permittivity of product 338680, 4´-Octyl-4-biphenylcarbonitrile are as follows:ne=1.673no=1.516in 27oCe||=12.8e^=6.65De=6.15in 39.4oC

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  3. What is the Department of Transportation shipping information for this product?

    1 answer

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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