Process for preparing polysilane by catalytic dehydrogenative condensation of organosilane and metal complex catalyst therefor
AssigneeDirector-General of Agency of Industrial Science and Technology
InventorsNami Choi, Shun-ya Onozawa, Toshiyasu Sakakura, Masato Tanaka
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Abstract
A polysilane is produced by subjecting a trihydrosilane to hydrogenative condensation in the presence of a titanium or zirconim complex catalyst having a first group selected from a dialkylaminoalkylcyclopentadienyl group, an α-[(dialkylamino)alkyl]indenyl group and a β-[(dialkylamino)alkyl]indenyl group and a second group selected from a cyclopentadienyl group and a pentamethylcyclopentadienyl group. The above dialkylaminoalkyl group may be replaced by a branched alkyl group. The zirconium complexes are novel compounds.
Claims2
A zirconium complex represented by the following formula:
- wherein L1 represents a first group selected from the group consisting of:
- (a) a group represented by the following formula (I):
- wherein R1 stands for an alkyl group having no more than 3 carbon atoms, and p represents an integer of 2 or 3,
- (b) a group represented by the following formula (II):
- wherein R2 stands for an alkyl group having no more than 3 carbon atoms, and q represents an integer of 2 or 3, and
- (c) a group represented by the following formula (III):
- wherein R3 stands for an alkyl group having no more than 3 carbon atoms, and m represents an integer of 1-4,
- L2 represents a second group selected from the group consisting of:
- (d) a cyclopentadienyl group represented by the formula (IV):
- and (e) a pentamethylcyclopentadienyl group represented by the formula (V):
- and each of L3 and L4 is chlorine.
Dependencies are inferred from the claim text.