15947-57-6

Basic information

• Product Name: NEOPENTASILANE
• Synonyms: NEOPENTASILANE;tetrasilylsilane
• CAS NO: 15947-57-6
• Molecular Formula: H₁₂Si₅
• Molecular Weight: 140.4275
• Mol File: 15947-57-6.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 132-134°C
• Appearance: /
• CAS DataBase Reference: NEOPENTASILANE(CAS DataBase Reference)
• NIST Chemistry Reference: NEOPENTASILANE(15947-57-6)
• EPA Substance Registry System: NEOPENTASILANE(15947-57-6)

Safety Data

• Hazardous Substances Data: 15947-57-6(Hazardous Substances Data)

Upstream product

• 7440-09-7 potassium 
• 7440-21-3 monosilane 
• 135524-36-6 Nonafluorobutansulfonsaeure-silylester 
• 7440-23-5 sodium 

Downstream Products

• 7440-21-3 silicon 

Relevant articles and documents

Dehydrogenative Build-up Reactions to Silyl-Substituted Alkali Metal Germanides, Stannides, and Phosphides; Molecular Structure of Neopentasilane

The build-up reaction between monosilane and dispersed sodium or potassium in diethyleneglycol dimethyl ether leads to alkali metal silylsilanides of the composition (Na/K)SiH3-n(SiH3)n (n = 0-3) (1, 1a-c; 2, 2a-c).By subsequent reactions with silyl nonafluorobutanesulfonate, C4F9SO3SiH3, benzenesulfonic acid, PhSO3H, and methyl p-toluenesulfonate the corresponding silanes SiH4-n(SiH3)n (n = 0-4) (3, 3a-d) and methylsilanes CH3SiH3-n(SiH3)n (n = 0-3) (4a-d) were obtained in good yield.The molecular structure of neopentasilane (3d) has been determined by electron diffraction analysis.Treatment of group IV and V hydrides GeH4, PH3, and SnH4 with mixtures of sodium or potassium silylsilanides (1, 1a-c; 2, 2a-c) leads to silyl-substituted sodium or potassium germanides (Na/K)GeH3-n(SiH3)n (n = 1-3) (5a-c, 6a-c), phosphides KPH2-n(SiH3)n (n = 1-2) (7a-b), and stannides NaSnH3-n(SiH3)n (n = 1-3) (8, 8a-c). - Key Words: Alkali metal silylsilanides / Alkali metal silylgermanides / Sodium silylstannides / Potassium silylphosphides / Neopentasilane / Electron diffraction