Bis(diethylamino)silane

Basic Information

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CAS Number

27804-64-4

Molecular Formula

C8H22N2Si

Molecular Weight

174.36 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Hydrocarbons

Basic Physical Properties

Boiling Point

188.5±23.0 ºC (760 Torr),

Flash Point

67.8±22.6 ºC,

SMILES

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CCN(CC)[Si]N(CC)CC

InChI

InChI=1S/C8H22N2Si/c1-5-9(6-2)11-10(7-3)8-4/h5-8,11H2,1-4H3

InChIKey

OWKFQWAGPHVFRF-UHFFFAOYSA-N

LogP

0.6687999999999997

Topological Polar Surface Area

6.48 Å²

Hydrogen Bond Donor/Acceptor

0 / 2

Complexity

70.2

Safety Information

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Sensitiveness

air sensitive, moisture sensitive

Synonyms & References

English

Silanediamine, N,N,N',N'-tetraethyl-
bis(diethylamino)dihydrosilane
BIS(DIETHYLAMINO)SILANE
Bisdiethylaminosilane
MFCD19105220
bis(diethylamino)silane
27804-64-4
BCP30198
Bis(diethylamino)silane, 99% (99.999%-Si) BDEAS PURATREM
SilanediaMide, N,N,N',N'-tetraethyl
BDEAS: SiH2[N(CH2CH3)2]2
SCHEMBL35573

MDL Number

MFCD19105220

FAQ

What are the physical and chemical properties of Bis(diethylamino)silane (CAS: 27804-64-4)?

Bis(diethylamino)silane (CAS: 27804-64-4) is a colorless to slightly yellow liquid with a molecular weight of approximately 184.26 g/mol. It is highly soluble in organic solvents like ethanol and acetone but has limited solubility in water. Chemically, it is moderately reactive, often used in organosilicon chemistry for its ability to form stable bonds with silicon. It has a pKa of about 6.5, indicating its basic nature.

How is Bis(diethylamino)silane (CAS: 27804-64-4) typically synthesized?

Bis(diethylamino)silane (CAS: 27804-64-4) is typically synthesized by the reaction of hexamethyldisilazane with diethylamine. This process involves the Grignard reaction where the methyl groups from hexamethyldisilazane are replaced by diethylamino groups. The reaction is carried out under anhydrous conditions and is sensitive to moisture and oxygen. High yields can be achieved with appropriate catalysts and reaction conditions.

What industries use Bis(diethylamino)silane (CAS: 27804-64-4)?

Bis(diethylamino)silane (CAS: 27804-64-4) is widely used in the pharmaceutical industry for drug synthesis, particularly in the modification of pharmaceutical polymers to improve their properties. It is also used in polymer science for functionalizing polymers, in sensor technologies for surface modification, and in semiconductor manufacturing for passivation layers and surface treatments.

What precautions should be taken when handling Bis(diethylamino)silane (CAS: 27804-64-4)?

When handling Bis(diethylamino)silane (CAS: 27804-64-4), appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat should be worn. It is flammable and should be stored away from heat and ignition sources. Handling should be done in a well-ventilated area or fume hood to avoid inhalation. Spills should be cleaned up using appropriate absorbents and the area should be well-ventilated. Always refer to the safety data sheet (SDS) for detailed handling and disposal information.