62436-46-8

Basic information

• Product Name: 1,1,2,2,3,3,4,4,5,5-decachloropentasilolane
• Synonyms: 1,1,2,2,3,3,4,4,5,5-decachloropentasilolane
• CAS NO: 62436-46-8
• Molecular Formula: Cl10Si5
• Molecular Weight: 494.96
• Mol File: 62436-46-8.mol
• Article Data: 6

Chemical Properties

• Appearance: /
• Density: 1.62g/cm³
• Refractive Index: 1.516
• CAS DataBase Reference: 1,1,2,2,3,3,4,4,5,5-decachloropentasilolane(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,2,2,3,3,4,4,5,5-decachloropentasilolane(62436-46-8)
• EPA Substance Registry System: 1,1,2,2,3,3,4,4,5,5-decachloropentasilolane(62436-46-8)

Safety Data

• Hazardous Substances Data: 62436-46-8(Hazardous Substances Data)

Usage

General Description

1,1,2,2,3,3,4,4,5,5-decachloropentasilolane is a chemical compound that is composed of ten chlorine atoms and a pentasilolane ring structure. It is a synthetic organic compound that is primarily used as a flame retardant and as a pesticide. It is known for its high stability and resistance to heat and chemicals, making it suitable for various industrial applications. Due to its high chlorine content, it is considered to be highly toxic and has been classified as a persistent organic pollutant. Additionally, it has been found to bioaccumulate in the environment and poses a risk to human and environmental health. As a result, the use and production of 1,1,2,2,3,3,4,4,5,5-decachloropentasilolane has been discontinued in many countries.

InChI:InChI=1/Cl10Si5/c1-11(2)12(3,4)14(7,8)15(9,10)13(11,5)6

Upstream product

• 7647-01-0 hydrogenchloride 
• 1770-54-3 decaphenylcyclopentasilane 
• 289-22-5 cyclopentasilane 
• 7646-78-8 tin(IV) chloride 
• 72117-54-5 nonaphenylcyclopentasilane 

Downstream Products

• 289-22-5 cyclopentasilane 

Relevant articles and documents

Thermal Synthesis of Perchlorinated Oligosilanes: A Fresh Look at an Old Reaction

A combined experimental and theoretical study of the high-temperature reaction of SiCl4 and elemental silicon is presented. The nature and reactivity of the product formed upon rapid cooling of the gaseous reaction mixture is investigated by comparison with the defined model compounds cyclo-Si5Cl10, n-Si5Cl12 and n-Si4Cl10. A DFT assessment provides mechanistic insight into the oligosilane formation. Experimental 29Si NMR investigations, supported by quantum-chemical 29Si NMR calculations, consistently show that the reaction product is composed of discrete molecular perchlorinated oligosilanes. Low-temperature chlorination is an unexpectedly selective means for the transformation of cyclosilanes to acyclic species by endocyclic Si?Si bond cleavage, and we provide a mechanistic rationalization for this observation. In contrast to the raw material, the product obtained after low-temperature chlorination represents an efficient source of neo-Si5Cl12 or the amine-stabilized disilene EtMe2N?SiCl2Si(SiCl3)2 through reaction with aliphatic amines.

Cyclopentasilane Si5H10: First single crystal X-ray structure of an oligosilane SixHy and thermal analysis with TG/MS

Cyclopentasilane Si5H10 (CPS) - a liquid silicon precursor - was crystallized in situ at - 100 C which allowed determination of the single crystal X-ray structure, showing short intermolecular distances below the sum of the v.d.Waals

Inorganic Bi(cyclopentasilanyls): Synthesis and Spectroscopic Characterization

Nonachloro- or nonabromocyclopentasilane, which are accessible from nonaphenylcyclopentasilane with HX/AlX3 (X=Cl, Br), easily can be converted to the bicyclic oligosilanes bi(nonachlorocyclopentasilanyl) (7) and bi(nonabromocyclopentasilanyl) (8) upon treatment with (t-Bu)2Hg. The phenylderivative bi(nonaphenylcycopentasilanyl) (6) can be synthesized from bromononaphenylcyclopentasilanyl) with naphthyllithium. The reaction of 6with HX/AlX3 again affords 7 or 8. When 7 or 8 are reacted with LiAlH4, about 15% of cyclopentasilane are obtained along with the expected prod uct bi(cyclopentasilanyl), what demonstrates the remarkable sensitivity of the central Si-Si bond in 7 and 8 towards nucleophilic attack. A smaller binding energy of the central Si-Si bond in 7 and 9, however, cannotbe deduced from mass spectroscopic studies.