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18733-91-0

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18733-91-0 Usage

Description

Bis(4-bromophenyl)-diphenyl-silane, with the molecular formula C38H28Br2Si, is a silane derivative featuring two 4-bromophenyl and two diphenyl groups attached to a central silicon atom. bis(4-bromophenyl)-diphenyl-silane is recognized for its high thermal stability and resistance to oxidation, making it a valuable component in various industrial applications.

Uses

Used in Silicone Polymer and Elastomer Production:
Bis(4-bromophenyl)-diphenyl-silane is utilized as a crosslinking agent, which is crucial for enhancing the mechanical properties and durability of silicone polymers and elastomers. Its ability to form stable crosslinks contributes to the improved performance of these materials in various applications.
Used in Organic Material and Coating Synthesis:
bis(4-bromophenyl)-diphenyl-silane serves as a key intermediate in the synthesis of organic materials and coatings, where its unique structure and properties can be leveraged to create novel materials with tailored characteristics. The crosslinking ability of bis(4-bromophenyl)-diphenyl-silane can improve the durability and performance of these coatings.
Used in Composite Material Manufacturing:
Bis(4-bromophenyl)-diphenyl-silane is employed as a coupling agent in the production of composite materials, facilitating strong interfacial bonding between the matrix and the reinforcing materials. This enhances the overall mechanical properties and performance of the composites in various industries.
Used in High-Temperature and Oxidation-Resistant Applications:
Due to its high thermal stability and resistance to oxidation, bis(4-bromophenyl)-diphenyl-silane is suitable for use in applications that require materials to withstand extreme temperatures and oxidative environments. This makes it valuable in industries such as aerospace, automotive, and electronics, where materials are subjected to harsh conditions.
It is important to handle bis(4-bromophenyl)-diphenyl-silane with care, as it may pose hazards to health and the environment if not used properly. Proper safety measures and disposal methods should be followed to minimize any potential risks associated with its use.

Check Digit Verification of cas no

The CAS Registry Mumber 18733-91-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,7,3 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 18733-91:
(7*1)+(6*8)+(5*7)+(4*3)+(3*3)+(2*9)+(1*1)=130
130 % 10 = 0
So 18733-91-0 is a valid CAS Registry Number.
InChI:InChI=1/C24H18Br2Si/c25-19-11-15-23(16-12-19)27(21-7-3-1-4-8-21,22-9-5-2-6-10-22)24-17-13-20(26)14-18-24/h1-18H

18733-91-0SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name bis(4-bromophenyl)-diphenylsilane

1.2 Other means of identification

Product number -
Other names 5-Bromo-8-quinolinol

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:18733-91-0 SDS

18733-91-0Relevant articles and documents

Conjugation-broken thiophene-based electropolymerized polymers with well-defined structures: effect of conjugation lengths on electrochromic properties

Zhang, Ling,Luo, Feifei,Li, Weijun,Yan, Shuanma,Chen, Zhangxin,Zhao, Ruiyang,Ren, Ning,Wu, Yizhao,Chen, Yuliang,Zhang, Cheng

, p. 24092 - 24100 (2019)

A series of monomers containing tetraphenylsilane connected to different thiophenes such as thiophene, bithiophene and terthiophene were designed and synthesized and were further used to prepare the corresponding polymers via electrochemical polymerization (pSiTPTP, pSiTPBTP and pSiTPTTP). From the polymers, the effective conjugate elements were well defined as bithiophene, quaterthiophene and sexithiophene because the sp3 Si atom can block the conjugation between the thiophene units in the polymer backbone. The spectroelectrochemical results indicated that pSiTPTP is incapable of electrochromism, which may be attributed to the insufficient conjugation length of the independent bithiophene. In contrast, both pSiTPBTP and pSiTPTTP exhibited obvious electrochromic properties and furthermore, pSiTPTTP displayed a shorter switching time and better stability. Such different electrochemical behaviors can be ascribed to the looser stacking structure and lower oxidation potential of pSiTPTTP with the independent sexithiophene unit. The EIS measurements also confirmed the lower charge-transfer resistance and higher ion-diffusion rate of pSiTPTTP with the independent sexithiophene unit. Hence, we can conclude that the effects of the electrochromic behavior of the conjugation-broken polythiophene derivatives depend on the increased conjugation length of the thiophene repeating unit, in which the inadequate electrochromism with bithiophene units can change to superior electrochromic properties with increased sexithiophene units.

Iridium complex grafted to 3,6-carbazole-alt-tetraphenylsilane copolymers for blue electrophosphorescence

Teng,Cheng, Gang,Dehua,Dong, Wenyue,Ping,Yuguang

, p. 1859 - 1865 (2010)

We designed a 3,6-dibromo-9-hexyl-9H-carbazole derivative with the blue emissive iridium complex bis[2-(4,6-difluorophenyl)pyridyl-N,C 2′](picolinato)iridium(III) (Flrpic) linked at the alkyl terminal. Based on this monomer, novel 3,6-carbazole-alt-tetraphenylsilane copolymers grafted with Flrpic were synthesized by palladium-catalyzed Suzuki coupling reaction, and the content of Flrpic in the polymers could be controlled by feed ratio of the monomers. The polymer films mainly show blue emission from Flrpic, and the emission intensity from the polymer backbones is much weaker compared with the doped analogues, which demonstrates an efficient energy transfer from polymeric host to covalently bonded guest. The phase separation in the polymers was suppressed, which can be identified by atomic force microscopy and designed electroluminescent (EL) devices. EL devices based on the polymers exhibited blue phosphorescence from Flrpic. The luminous efficiency of preliminary devices reached 2.3 cd/A, and the efficiency roll-off at high current densities was suppressed.

Silicon-based compound and organic light emitting diode comprising the same

-

Paragraph 0193-0199, (2019/12/25)

A silicon compound and an organic light emitting device including the same are. disclosed. (by machine translation)

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