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Key Documents

Altri documenti

328510

Sigma-Aldrich

4′-Pentyl-4-biphenylcarbonitrile

liquid crystal (nematic), 98%

Sinonimo/i:

4-Cyano-4-pentylbiphenyl, 4-Pentyl-4-cyanobiphenyl, 5CB

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About This Item

Formula condensata:
CH3(CH2)4C6H4C6H4CN
Numero CAS:
40817-08-1
Peso molecolare:
249.35
Numero CE:
255-093-2
Numero MDL:
MFCD00036350
Codice UNSPSC:
12352103
ID PubChem:
24859381
NACRES:
NA.23

Saggio

98%

Forma fisica

liquid crystal (nematic)

Indice di rifrazione

n20/D 1.532 (lit.)

P. eboll.

140-150 °C/0.5 mmHg (lit.)

Densità

1.008 g/mL at 25 °C (lit.)

Stringa SMILE

CCCCCc1ccc(cc1)-c2ccc(cc2)C#N

InChI

1S/C18H19N/c1-2-3-4-5-15-6-10-17(11-7-15)18-12-8-16(14-19)9-13-18/h6-13H,2-5H2,1H3
HHPCNRKYVYWYAU-UHFFFAOYSA-N

Descrizione generale

4′-Pentyl-4-biphenylcarbonitrile (5CB) is a nematic liquid crystal. 5CB undergoes phase transition from crystalline to nematic then to isotropic state at 18oC and 35oC respectively. It may be produced by modifying biphenyl.2

Applicazioni

Attaching 5CB to an aqueous-liquid crystal interface by redox active surfactant has been investigated.

Pittogrammi

Exclamation mark
GHS07

Avvertenze

Warning

Indicazioni di pericolo

H317

Classi di pericolo

Skin Sens. 1

Codice della classe di stoccaggio

10 - Combustible liquids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Dispositivi di protezione individuale

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

Certificati d'analisi (COA)

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Jeffrey M Brake et al.
Langmuir : the ACS journal of surfaces and colloids, 23(16), 8497-8507 (2007-06-28)
We report a study of the interactions of proteins with monolayers of phospholipids (D/L-alpha-dipalmitoyl phosphatidylcholine and L-alpha-dilauroyl phosphatidylcholine) spontaneously assembled at an interface between an aqueous phase and a 20-microm-thick film of a nematic liquid crystal (4'-pentyl-4-cyanobiphenyl). Because the orientation
Palash Dhara et al.
Scientific reports, 8(1), 7169-7169 (2018-05-10)
Spin dewetting refers to spontaneous rupture of the dispensed solution layer during spin coating, resulting in isolated but periodic, regular sized domains of the solute and is pre-dominant when the solute concentration (C n ) is very low. In this
Beom-Kyu Lee et al.
Scientific reports, 7(1), 15916-15916 (2017-11-23)
It is generally thought that colloidal particles in a nematic liquid crystal do not generate the first multipole term called deformation elastic charge as it violates the mechanical equilibrium. Here, we demonstrate theoretically and experimentally that this is not the
Maria-Victoria Meli et al.
Journal of the American Chemical Society, 130(13), 4326-4333 (2008-03-14)
Langmuir monolayers (monolayers of insoluble molecules formed at the surface of water), and associated Langmuir-Blodgett/Schaefer monolayers prepared by transfer of Langmuir films to the surfaces of solids, are widely used in studies aimed at understanding the physicochemical properties of biological
Yi Huang et al.
Optics express, 26(8), 10452-10461 (2018-05-03)
This paper proposes and demonstrates a particle free method for flow field visualizations by analyzing liquid crystal polarizations. The proposed concept is implemented by imaging of liquid crystal flow under microfluidic environment using a crossed polarization microscopy configuration. Fringe patterns
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