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638102

Sigma-Aldrich

4,4′-Bis(triethoxysilyl)-1,1′-biphenyl

≥90% (VPCC)

Sinônimo(s):

4,4′-Bis(triethoxysilyl)biphenyl

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About This Item

Fórmula linear:
[-C6H4Si(OC2H5)3]2
Número CAS:
123640-93-7
Peso molecular:
478.73
Número MDL:
MFCD06798075
Código UNSPSC:
12352103
ID de substância PubChem:
24882911
NACRES:
NA.22

Ensaio

≥90% (VPCC)

pb

203-206 °C/0.3 mmHg (lit.)

densidade

1.047 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

CCO[Si](OCC)(OCC)c1ccc(cc1)-c2ccc(cc2)[Si](OCC)(OCC)OCC

InChI

1S/C24H38O6Si2/c1-7-25-31(26-8-2,27-9-3)23-17-13-21(14-18-23)22-15-19-24(20-16-22)32(28-10-4,29-11-5)30-12-6/h13-20H,7-12H2,1-6H3

chave InChI

KENDGHJJHKCUNB-UHFFFAOYSA-N

Aplicação

4,4′-Bis(triethoxysilyl)-1,1′-biphenyl (BTESB) can be used as an indicator to determine the chirality of helical silica nanotubes.

BTESB can also be utilized as a precursor to prepare:
  • Helical 4, 4′-biphenylene-silica nanotubes and nanoribbons using 3-aminopropyltrimethoxysilane as a co-structure-directing agent.
  • Biphenyl-bridged alkoxysilane-based crosslinked polyalkoxysilane by condensation with linear aliphatic diols.
  • Biphenylene-bridged silsesquioxane thin films by the sol-gel method.

A silicon-based nucleophile shown to be reactive in Pd-catalyzed cross-coupling reactions.

Frases de perigo

H413

Classificações de perigo

Aquatic Chronic 4

Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

>230.0 °F - closed cup

Ponto de fulgor (°C)

> 110 °C - closed cup

Equipamento de proteção individual

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

Certificados de análise (COA)

Busque Certificados de análise (COA) digitando o Número do Lote do produto. Os números de lote e remessa podem ser encontrados no rótulo de um produto após a palavra “Lot” ou “Batch”.

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A chirality indicator for the walls and the surfaces of silica nanotubes
Hou F-W, et al.
Chinese Chemical Letters = Zhongguo Hua Xue Kuai Bao, 24(8), 770-772 (2013)
Chimie douce route to novel acoustic waveguides based on biphenylene-bridged silsesquioxanes
Masse P, et al.
Journal of Materials Chemistry, 21(38), 14581-14586 (2011)
Lorenzo Abate et al.
Polymers, 11(9) (2019-09-12)
Two series of novel dumbbell-shaped polyhedral oligomeric silsesquioxanes (POSSs), fully functionalized with phenyl groups at the corner of the silicon cages, were used to prepare polystyrene (PS) nanocomposites through the method of in situ polymerization. The percentage of the molecular
Yi Li et al.
Nanotechnology, 22(13), 135605-135605 (2011-02-24)
An anionic gelator, D-C12ValC10COONa, derived from D-valine can cause physical gels in water and organic solvents. Helical 4,4(')-biphenylene-silica nanotubes and nanoribbons were prepared using it with 3-aminopropyltrimethoxysilane as a co-structure-directing agent and 4,4(')-bis(triethoxysilyl)-1,1(')-biphenyl (BTESB) as precursor. It was found that
Denmark, S. E.; Ober, M. H.
Aldrichimica Acta, 36, 75-75 (2003)

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