18365-32-7

Basic information

• Product Name: 1,1,1-trimethyldisilane
• Synonyms: Disilane, 1,1,1-trimethyl-; 1,1,1-Trimethyldisilane; trimethylsilylsilicon
• CAS NO: 18365-32-7
• Molecular Formula: C₃H₁₂Si₂
• Molecular Weight: 101.2746
• EINECS: 242-236-9
• Mol File: 18365-32-7.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 64.7°C at 760 mmHg
• Vapor Pressure: 175mmHg at 25°C
• CAS DataBase Reference: 1,1,1-trimethyldisilane(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,1-trimethyldisilane(18365-32-7)
• EPA Substance Registry System: 1,1,1-trimethyldisilane(18365-32-7)

Safety Data

• Hazardous Substances Data: 18365-32-7(Hazardous Substances Data)

Usage

Appearance

Colorless

Physical state

Liquid

Flammability

Highly flammable

Reactivity

Highly reactive

Chemical reactions

Can undergo hydrolysis, oxidation, and halogenation

Industrial applications

Used in the semiconductor industry as a precursor in the production of thin films and silicon dioxide coatings

Use in organic chemistry

Used as a cross-coupling reagent in organic chemistry reactions

Safety precautions

Should be handled with care due to its flammability and reactivity

Classification

Member of the organosilicon compounds

Importance

An important compound in the field of organosilicon chemistry

Upstream product

• 57519-90-1 1,1,1-tribromo-2,2,2-trimethyldisilane 
• 1590-87-0 disilane 
• 993-07-7 trimethylsilan 
• 18026-87-4 1,1,1-trichloro-2,2,2-trimethyldisilane 

Relevant articles and documents

CMe3SiX3 and SiMe3SiX3 (X = H, F, Cl, Br, I): A combined ab initio and vibrational spectroscopic study

The infrared and Raman vibrational spectra of the tert-butylsilanes CMe3SiX3 and disilanes SiMe3SiX3 (X = H, F, Cl, Br, I) have been measured and assigned with the help of normal coordinate analyses and potential energy distribution analyses employing ab initio optimized geometries and ab initio symmetry force constants. Scaled theoretical SiX and SiSi force constants are smaller than values estimated by extrapolation from spectroscopic force constants of related disilanes. The synthesis of the novel compound SiMe3SiI3 and the residual disilanes SiMe3SiX3 (X = H, F, Cl, Br) is described.

Shock-induced kinetics of the disilane decomposition and silylene reactions with trimethylsilane and butadiene

The homogeneous gas-phase decomposition kinetics of disilane have been studied by the comparative rate, single-pulse shock-tube technique in the 850-1000 K (2300-2700 torr) ranges. Two primary dissociation processes occur, Si2H6-i SiH4/su