Pyrolysis of trichlorosilane in the presence of chloroform
The pyrolysis of trichlorosilane in the presence of different amounts of chloroform and the copyrolysis of HSiCl3 with buta-1,3-diene in the presence of 1 mol.% chloroform were studied. The enthalpies of formation of products resulting from the pyrolysis of HSiCl3 in the presence of chloroform were calculated by the quantum chemical method. Based on the thermochemical data as well as data from GLC and mass spectrometry, it was concluded from the condensate composition that introduction of chloroform into the zone of pyrolysis of HSiCl3 favors generation of silylenes.
Krasnova,Abramova,Alekseev,Chernyshev
p. 1960 - 1963
(2007/10/03)
The Amine Catalysed Cleavage of Oligochloropolysilanes with HCl
Tetrakis(trichlorosilyl)silan (neo-Si3Cl12) is cleaved in an amine catalysed reaction by HCl in benzene solution to tris(trichlorosilyl)silan HSi(SiCl3)3 (1).The amine catalysed cleavage of 1 with different amines and solvents is investigated.A new method for preparation of pentachlorodisilane HSi2Cl5 is described and a reaction mechanism for the cleavage is postulated. - Keywords: Oligochlorosilanes; SiSi-Cleavage with HCl; neo-Dodecachloropentasilane; Tris(trichlorosilyl)silane
Raml, Walter,Hengge, Edwin
p. 29 - 36
(2007/10/02)
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