Autoxidation of poly(hydrosilane)s

Organometallics

Volumn 17, Issue 11, 1998, Pages 2169-2176

  Chatgilialoglu, Chryssostomos ^a   Guerrini, Andrea ^a   Lucarini, Marco ^b   Pedulli, Gian Franco ^b   Carrozza, Primo ^c   Da Roit, Giovanni ^c   Borzatta, Valerio ^c   Lucchini, Vittorio ^d  

^a CNR   (Italy)

^b UNIVERSITY OF BOLOGNA   (Italy)

^c CIBA GEIGY LTD   (Switzerland)

^d CA' FOSCARI UNIVERSITY OF VENICE   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000480898     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om980011p     Document Type: Article

References (94)

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60. It is worth poiting out that the autoxidation of oligo- and polysilanes is almost unexplored. Strained cyclic oligosilanes, when not self-protected by steric hindrance, react spontaneously with atmospheric oxygen to give siloxane products. The reaction of molecular oxygen with oligosilanes having larger ring sizes and with linear polysilanes, both having two organo substituents on the silicon atoms, seems to be unimportant. For a review, see: Hengge, E.; Janoschek, R. Chem. Rev. 1995, 95, 1495-1526.
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63. Celite diatomite (Tonsil) is a light, siliceous, friable deposit derived from the remains of diatoms. It can be used as a filter aid and an absorbent and was purchased from B. H. Schilling S.p.A.
64. Radical-based degradation of poly(hydrosilane)s coupled with purification methodologies have been carried out in our laboratories (Chatgilialoglu, C.; Siskos, M.; Barbieri, A. Manuscript in preparation).
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74. The initiation step remains in doubt.
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82. i has been determined by performing the autoxidation of styrene in the presence of a known amount of α-tocopherol by employing the same experimental conditions used in the autoxidation of the silane.
83. -4 M)], the reaction of butoxyl radicals with α-tocopherol can be safely neglected.
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86. i has been determined by following, by EPR spectroscopy, the growth of the phenoxyl radicals generated b[y photolyzing di-tert-butyl peroxide in the presence of tri-tert-butylphenol, in the same experimental conditions employed in the autoxidation of the silane.
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