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638102

Sigma-Aldrich

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

≥90% (VPCC)

Sinonimo/i:

4,4′-Bis(triethoxysilyl)biphenyl

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About This Item

Formula condensata:
[-C6H4Si(OC2H5)3]2
Numero CAS:
123640-93-7
Peso molecolare:
478.73
Numero MDL:
MFCD06798075
Codice UNSPSC:
12352103
ID PubChem:
24882911
NACRES:
NA.22

Saggio

≥90% (VPCC)

P. eboll.

203-206 °C/0.3 mmHg (lit.)

Densità

1.047 g/mL at 25 °C (lit.)

Stringa SMILE

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
KENDGHJJHKCUNB-UHFFFAOYSA-N

Categorie correlate

Applicazioni

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.

Indicazioni di pericolo

H413

Classi di pericolo

Aquatic Chronic 4

Codice della classe di stoccaggio

10 - Combustible liquids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

>230.0 °F - closed cup

Punto d’infiammabilità (°C)

> 110 °C - closed cup

Dispositivi di protezione individuale

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

Certificati d'analisi (COA)

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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)
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)
Preparation of biphenyl-bridged, crosslinked polyalkoxysilanes: Determination of oil/organic solvent absorption features
Kizil S and Bulbul Sonmez H
Journal of Applied Polymer Science, 133(48), 770-772 (2016)
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
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
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