62257-60-7

Basic information

• Product Name: TRIS(TRICHLOROSILYL)SILANE
• Synonyms: TRIS(TRICHLOROSILYL)SILANE;Bis(Trichlorosilyl)Silyl-Trichlorosilane
• CAS NO: 62257-60-7
• Molecular Formula: Cl₉HSi₄
• Molecular Weight: 432.42694
• Mol File: 62257-60-7.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 60-62°C / 0.2
• Appearance: /
• CAS DataBase Reference: TRIS(TRICHLOROSILYL)SILANE(CAS DataBase Reference)
• NIST Chemistry Reference: TRIS(TRICHLOROSILYL)SILANE(62257-60-7)
• EPA Substance Registry System: TRIS(TRICHLOROSILYL)SILANE(62257-60-7)

Safety Data

• Hazardous Substances Data: 62257-60-7(Hazardous Substances Data)

Usage

General Description

TRIS(TRICHLOROSILYL)SILANE is a chemical compound with the formula SiHCl3, also known as silicon trichlorosilane. It is a colorless, flammable liquid with a pungent odor, commonly used as a precursor in the production of silicone polymers. TRIS(TRICHLOROSILYL)SILANE is highly reactive and can undergo hydrolysis in the presence of water to produce hydrochloric acid and silicic acid. It is also used as a coupling agent in the adhesion and bonding of composite materials, and as a crosslinking agent in the formulation of silicone-based sealants and adhesives. Due to its reactive and corrosive nature, TRIS(TRICHLOROSILYL)SILANE should be handled with caution in a well-ventilated area and with appropriate personal protective equipment.

Upstream product

• 50350-62-4 tetrakis(trichlorosilyl)silane 
• 7647-01-0 hydrogenchloride 

Downstream Products

• 31411-98-0 1,1,1,2,2-pentachlorodisilane 
• 10025-78-2 trichlorosilane 

Relevant articles and documents

The Weakly Coordinating Tris(trichlorosilyl)silyl Anion

Closely following the procedure for the preparation of the base-stabilized dichlorosilylene complex NHCDipp?SiCl2 reported by Roesky, Stalke, and co-workers (Angew. Chem. Int. Ed. 2009, 48, 5683–5686), a few crystals of the salt [NHCDipp?H???Cl???H?NHCDipp]Si(SiCl3)3 were isolated, aside from the reported byproduct [NHCDipp?H+???Cl?], and characterized by X-ray crystallography (NHCDipp=N,N-di(2,6-diisopropylphenyl)imidazo-2-ylidene). They contain the weakly coordinating anion Si(SiCl3)3?, which was also obtained in high yields upon deprotonation of the conjugate Br?nsted acid HSi(SiCl3)3 with NHCDipp or PMP (PMP=1,2,2,6,6-pentamethylpiperidine). The acidity of HSi(SiCl3)3 was estimated by DFT calculations to be substantially higher than those of other H-silanes. Further DFT studies on the electronic structure of Si(SiCl3)3?, including the electrostatic potential and the electron localizability, confirmed its low basicity and nucleophilicity compared with other silyl anions.

TRIHYDRIDOSILYL-TERMINATED POLYSILANES AND METHODS OF PREPARATION

Novel trihydridosilyl-terminated polysilanes and methods for their synthesis, which are applicable to other polysilanes, are provided. The synthetic methods provide for facile preparation of products with minimal handling of pyrophoric intermediates and b