Electronic Resource
Springer
Journal of inorganic and organometallic polymers and materials
3 (1993), S. 287-303
ISSN:
1572-8870
Keywords:
Cyclosilanes
;
electrochemical formation of polysilanes
;
catalytic polymerization
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract New cyclosilanes with substituents, which are functional groups, open the possibility of forming new polycyclic silanes in an aimed synthesis. This is possible on five- and six-membered rings. Also, mixed systems with different ring sizes were prepared. The UV spectra are discussed. An annelid dicycle Si10Me18 was also prepared. With this compound a radical anion can be formed. New aspects of the electrochemical synthesis of polysilanes are presented and a chlorine stable anode is proposed for the first time. The polymerization reaction of hydrogen-containing methyldisilanes is discussed. This reaction yields polysilanes with a general composition (SiMeH) n and a ceramic yield over 88%. The reaction is very different from the known reaction of monosilanes. Disilanes react faster and to high polymers. Two reaction mechanisms seem to be working simultaneously, i.e., a mechanism as postulated in monosilanes and a disproportionation reaction. These mechanisms are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00683955
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