1590-87-0Relevant articles and documents
VUV photoionization time-of-flight mass spectrometry of flash pyrolysis of silane and disilane
Chambreau, Steven D.,Zhang, Jingsong
, p. 482 - 488 (2001)
Flash pyrolysis of silane, SiH4, and disilane, Si2H6, diluted in He or Ar (1%), was carried out at temperatures ranging from ~700 to ~1500 K. After a short reaction time of ~20 μs, the initial products were isolated in a supersonic molecular beam and detected by single vacuum ultra-violet (VUV) photon (λ=118or121nm) ionization time-of-flight mass spectrometry (TOFMS). Initial decomposition and reaction products, both free radical intermediates and stable species, were directly observed, which included SiH2 and Si2H4.
Thermodynamics of the Si-O-N system: I. High-temperature study of the vaporization behavior of silicon nitride by mass spectrometry
Rocabois,Chatillon,Bernard
, p. 1351 - 1360 (1996)
Si3N4(s) powders are vaporized in effusion cells, and the gaseous phase, analyzed by mass spectrometry, is composed of N2, Si, Si2, Si3, SiN, and Si2N. Owing to retarding vaporization of N
Prototype Si-H Insertion Reaction of Silylene with Silane. Absolute Rate Constants, Temperature Dependence, RRKM Modelling and the Potential-energy Surface
Becerra, Rosa,Frey, H. Monty,Mason, Ben P.,Walsh, Robin,Gordon, Mark S.
, p. 2723 - 2732 (1995)
Time-resolved studies of silylene, SiH2, generated by laser flash photolysis of phenylsilane, have been carried out to obtain rate constants for its bimolecular reaction with monosilane, SiH4.The reaction was studied in the gas phase over the pressure ran
Infrared Multiphoton Decomposition of Monosilane
Longeway, P. A.,Lampe, F. W.
, p. 6813 - 6818 (1981)
The decomposition of SiH4 by infrared radiation from a pulsed CO2 TEA laser at 944.19 cm-1 has been studied in the pressure range of 10-22 torr and at a fluence of 1.0 J/cm2.The products observed are H2, Si2H6, Si3H8, Si4H10, Si5H12, and a solid (SiHx)n.The energy absorption from the laser beam increases with increasing pressure of SiH4 and/or of He, showing that collisions are necessary to pump molecules into the quasicontinuum from which resonant absorption of the laser photon occurs readily.The addition of He also increases the decomposition rate showing that the decomposition is a multiphoton decomposition and not a purely thermal reaction.The primary dissociation of SiH4 is to H2 and SiH2 and it is the further reactions initiated by attack of SiH2 on SiH4 that cause the observed decomposition.It is shown that the results are accounted for by a Boltzmann distribution of infrared photons in SiH4 and a reaction mechanism identical with that shown to obtain in the pyrolysis of SiH4.
Unusually selective synthesis of chlorohydrooligosilanes
Lainer, Thomas,Fischer, Roland,Leypold, Mario,Holthausen, Michael,Wunnicke, Odo,Haas, Michael,Stueger, Harald
supporting information, p. 13812 - 13815 (2020/11/18)
New pathways towards molecular chlorohydrooligosilanes enable their one-pot synthesis in preparative amounts either by the selective chlorination of the corresponding perhydrosilanes with HCl/AlCl3 or by the partial hydrogenation of perchlorooligosilanes
Matrix reactivity of Zn, Cd, or Hg atoms (M) in the presence of silane: Photogeneration and characterization of the insertion product HMSiH3 in a solid argon matrix
Macrae, Victoria A.,Greene, Tim M.,Downs, Anthony J.
, p. 1393 - 1402 (2007/10/03)
Matrix-isolation experiments give evidence that broad-band UV-vis irradiation (200 ≤ λ ≤ 800 nm) of an Ar matrix doped with SiH4 and a group 12 metal atom M (M = Zn, Cd, or Hg) induces metal insertion into an Si-H bond to give the silyl metal hydride molecule HMSiH3 as the primary product. Si2H6 is a second product, irrespective of the identity of M, while the binary hydride MH2 is also formed when M = Zn or Cd. The products have been identified by their IR spectra and experiments with SiD4, together with the results of quantum chemical calculations, have provided the means of authentication. The properties of the HMSiH3 molecules are compared with those of related species, and consideration is given to how the products come to be formed.