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328510

Sigma-Aldrich

4′-Pentyl-4-biphenylcarbonitrile

liquid crystal (nematic), 98%

Synonyme(s) :

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

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About This Item

Formule linéaire :
CH3(CH2)4C6H4C6H4CN
Numéro CAS:
40817-08-1
Poids moléculaire :
249.35
Numéro CE :
255-093-2
Numéro MDL:
MFCD00036350
Code UNSPSC :
12352103
ID de substance PubChem :
24859381
Nomenclature NACRES :
NA.23

Pureté

98%

Forme

liquid crystal (nematic)

Indice de réfraction

n20/D 1.532 (lit.)

Point d'ébullition

140-150 °C/0.5 mmHg (lit.)

Densité

1.008 g/mL at 25 °C (lit.)

Chaîne SMILES 

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

Clé InChI

HHPCNRKYVYWYAU-UHFFFAOYSA-N

Description générale

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

Application

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

Pictogrammes

Exclamation mark
GHS07

Mention d'avertissement

Warning

Mentions de danger

H317

Classification des risques

Skin Sens. 1

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 3

Équipement de protection individuelle

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

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Jin Pan et al.
Nanomaterials (Basel, Switzerland), 8(6) (2018-06-13)
Resistive pressure sensors generally employ microstructures such as pores and pyramids in the active layer or on the electrodes to reduce the Young’s modulus and improve the sensitivity. However, such pressure sensors always exhibit complex fabrication process and have difficulties
Makiko T Quint et al.
Scientific reports, 7(1), 17788-17788 (2017-12-21)
We present three-dimensional microshells formed by self-assembly of densely-packed 5 nm gold nanoparticles (AuNPs). Surface functionalization of the AuNPs with custom-designed mesogenic molecules drives the formation of a stable and rigid shell wall, and these unique structures allow encapsulation of cargo
Yu Xia et al.
Advanced materials (Deerfield Beach, Fla.), 28(43), 9637-9643 (2016-10-08)
Two-dimensional liquid-crystal elastomer (LCE) sheets with preprogrammed topological defects are prepared by aligning liquid-crystal monomers within micropatterned epoxy channels, followed by photopolymerization. Upon heating, the LCE films form various three-dimensional structures in agreement with theoretical design. The miniaturized LCE actuators
Joo Song Lee et al.
Science (New York, N.Y.), 362(6416), 817-821 (2018-11-18)
Although polycrystalline hexagonal boron nitride (PC-hBN) has been realized, defects and grain boundaries still cause charge scatterings and trap sites, impeding high-performance electronics. Here, we report a method of synthesizing wafer-scale single-crystalline hBN (SC-hBN) monolayer films by chemical vapor deposition.
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
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