Synthesis of polyacetylene with titanocene-aluminum hydride catalysts
Journal Article
·
· Russian Chemical Bulletin
- M. V. Lomonosov Moscow State Univ., Moscow (Russian Federation)
Heterometallic hydride titanocene-aluminum complexes Cp{sub 2}Ti({mu}-H){sub 2}AlH(X) and (Cp{sub 2}Ti){sub 2}AlH{sub 4}X are highly efficient homogeneous catalysts for acetylene polymerization. The binuclear complex of the composition Cp{sub 2}Ti({mu}-H){sub 2}AlH{sub 2} at 2.2-3.2 M concentrations in ether-toluene solutions exhibits the maximum activity in this reaction. It is believed that the mechanisms of the isomerization of olefins and the polymerization of acetylene are similar and, correspondingly, the compositions and structures of the active sites in both processes are close to each other. The polyacetylene formed with hydride catalysts (mostly the cis-isomer) after doping with iodine has an electrical conductivity of 1.5-2.0{center_dot}10{sup 4} Ohm{sup -1}cm{sup -1}.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 159568
- Journal Information:
- Russian Chemical Bulletin, Journal Name: Russian Chemical Bulletin Journal Issue: 3 Vol. 43; ISSN 1066-5285; ISSN RCBUEY
- Country of Publication:
- United States
- Language:
- English
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