Dimethyl[bis(phenylethynyl)]silane

Dimethyl[bis(phenylethynyl)]silane - Names and Identifiers

Name	Dimethyl[bis(phenylethynyl)]silane
Synonyms	Dimethylbis(phenylethynyl)silane Bis(phenylethynyl)dimethylsilane Dimethyl[bis(phenylethynyl)]silane dimethyl-bis(2-phenylethynyl)silane benzene, 1,1'-[(dimethylsilylene)di-2,1-ethynediyl]bis- Benzene, 1,1'-[(dimethylsilylene)di-2,1-ethynediyl]bis-
CAS	2170-08-3
InChI	InChI=1/C18H16Si/c1-19(2,15-13-17-9-5-3-6-10-17)16-14-18-11-7-4-8-12-18/h3-12H,1-2H3

Dimethyl[bis(phenylethynyl)]silane - Physico-chemical Properties

Molecular Formula	C18H16Si
Molar Mass	260.41
Density	1.03g/cm³
Melting Point	78-81°C
Boling Point	180°C 4mm
Flash Point	>110°C
Vapor Presure	5.32E-05mmHg at 25°C
Maximum wavelength(λmax)	['249nm(Cyclohexane)(lit.)']
Storage Condition	Room Temprature
Sensitive	4: no reaction with water under neutral conditions
Refractive Index	1.584

Dimethyl[bis(phenylethynyl)]silane - Risk and Safety

Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
TSCA	No

Dimethyl[bis(phenylethynyl)]silane - Introduction

Bis (phenylethynyl) dimethylsilane, chemical formula C20H18Si, is an organosilicon compound. The following is a brief description of its nature, use, preparation and safety information:

Nature:
-Appearance: Colorless to light yellow liquid.
-Melting point:-61 ° C.
-Boiling point: 180-190 ° C.
-Density: 0.94g/cm³.
-Solubility: Soluble in organic solvents such as ether, benzene and dichloromethane.

Use:
-Bis (phenylethynyl) dimethylsilane is commonly used as an organosilicon reagent in organic synthesis reactions.
-It can be used to modify the surface of the material and improve the performance of the material, such as enhancing the wear resistance and corrosion resistance of the coating.
-In organic optoelectronic materials, it can also be used as a precursor for organosilicon monomers.

Method:
-A common preparation method is through the Grignard reaction. First, a solution of phenylethynylmagnesium is reacted with chloromethylsilane to form the corresponding organomagnesium compound. Then, reaction with methyl formate yields bis (phenylethynyl) dimethylsilane.
-Another common preparation method involves the reaction of Grignard reagent and methyl chloride to produce an organomagnesium compound with a corresponding group, which then reacts with chlorosilane to form bis (phenylethynyl) dimethyl silane.

Safety Information:
-Bis (phenylethynyl) dimethylsilane may be irritating to the eyes, skin and respiratory tract, so appropriate personal protective measures should be taken when handling.
-Avoid contact with fire and high temperature during use to avoid burning or explosion.

Please note that the information provided above is for informational purposes only. For detailed operational instructions or safety information, please refer to the relevant chemical literature or consult a professional body.

Last Update：2024-04-10 22:29:15