73151-72-1

Basic information

• Product Name: disilanyl
• Synonyms: Disilanyl
• CAS NO: 73151-72-1
• Molecular Formula: H₅Si₂
• Molecular Weight: 61.2107
• Mol File: 73151-72-1.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: disilanyl(CAS DataBase Reference)
• NIST Chemistry Reference: disilanyl(73151-72-1)
• EPA Substance Registry System: disilanyl(73151-72-1)

Safety Data

• Hazardous Substances Data: 73151-72-1(Hazardous Substances Data)

Upstream product

• 1590-87-0 disilane 
• 7440-21-3 silyl 
• 13774-94-2 silicon monohydride 
• 7440-21-3 monosilane 
• 16873-17-9 deuterium 

Relevant articles and documents

Photoionization mass spectrometric studies of the transient species Si2Hn (n = 2-5)

The transient species Si2H5, Si2H4, Si2H3, and Si2H2 have been prepared for the first time, by reactions of F atoms with Si2H6.The species are generated in situ and studied by photoionization mass spectrometry.The adiabatic ionization potentials are (in e

Gas-phase homolytic substitution reactions of hydrogen atoms at silicon centers

The reaction of H atoms with a number of mono-, di-, and trisilanes has been studied with the view of examining the possible occurrence of a homolytic substitution reaction (SH2). Arrhenius parameters for abstraction plus substitution have been determined for the reaction of H atoms with Si2H6, Me3SiSiMe2H, Me3SiSiCl3, Si2Cl6, and Me8Si3. The ratio of substitution vs. abstraction was determined. It is found that di- and trisilanes react fast by an SH2 reaction while monosilanes are unreactive. Ligands with a -I effect cause a decrease in reactivity. The experimental facts are explained by a frontside attack of the H atoms due to the favorable interaction of the singly occupied orbital at the H atom with the energetically high-lying Si-Si orbital.