CAS 33567-83-8

Phenylmethylbis(dimethylamino)-silane

Description:

Phenylmethylbis(dimethylamino)-silane, with the CAS number 33567-83-8, is an organosilicon compound characterized by its unique structure that includes a silicon atom bonded to two dimethylamino groups and a phenylmethyl group. This compound typically exhibits properties associated with both silanes and amines, such as reactivity towards moisture and potential use as a coupling agent or surface modifier in various applications. It is generally a colorless to pale yellow liquid with a relatively low viscosity. The presence of dimethylamino groups imparts basicity, allowing it to participate in various chemical reactions, including nucleophilic substitutions. Additionally, the phenyl group contributes to its hydrophobic characteristics, making it suitable for applications in coatings, adhesives, and sealants. Safety considerations include handling it in well-ventilated areas and using appropriate personal protective equipment, as it may release toxic fumes upon decomposition. Overall, its unique combination of functional groups makes it a versatile compound in the field of materials science and organic synthesis.

Formula: C₁₁H₂₀N₂Si

InChI: InChI=1/C11H20N2Si/c1-12(2)14(5,13(3)4)11-9-7-6-8-10-11/h6-10H,1-5H3

SMILES: CN(C)[Si](C)(c1ccccc1)N(C)C

Synonyms:

• Phenylmethylbisdimethylaminosilane
• N,N,N',N',1-pentamethyl-1-phenylsilanediamine
• Phenylmethylbis(Dimethylamino)Silane
• Silanediamine, N,N,N',N',1-pentamethyl-1-phenyl-
• BIS(DIMETHYLAMINO)METHYLPHENYLSILANE
• N-[benzyl(dimethylamino)silyl]-N-methylmethanamine
• Bis(Dimethylamino) Phenyl Methylsilane
• N,N,N',N',α-Pentamethyl-α-phenylsilanediamine

PHENYLMETHYLBIS(DIMETHYLAMINO)SILANE

CAS: 33567-83-8

Aromatic Silane - Conventional Surface Bonding
Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.
Phenylmethylbis(dimethylamino)silane; Bis(dimethylamino)methylphenylsilane; Bis(dimethylamino)phenylmethylsilane; N,N,N',N',1-Pentamethyl-1-phenylsilanediamine

Formula: C₁₁H₂₀N₂Si

Purity: 97%

Color and Shape: Straw Liquid

Molecular weight: 208.38

Ref: 3H-SIP6736.8