✦ LIBER ✦

Synthesis of zirconocene-acetylene and zirconocene-diacetylene polymer

✍ Scribed by Prafulla K. Sahoo; Sarat K. Swain

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 123 KB
Volume: 37
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19991101)37:21<3899::aid-pola3>3.0.co;2-4

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✦ Synopsis

A new class of organometallic polymer having a backbone of conjugated Poly-yne and Zr-metal atoms has been prepared. Trichloroethylene (TCE) and Hexachlorobutadiene (HCB) are quantitatively converted by n-butyllithium to dilithioacetylene (LiC'CLi) and dilithiodiacetylene (LiOC'COC'COLi) respectively. Quenching with Cp 2 *ZrCl 2 affords high yields of the polymers [ -Zr(Cp 2 *)C'C]n and [ -Zr(Cp 2 *)C'COC'C]n where Cp* ϭ C 5 (CH 3 ) 5 ϭ pentamethyl cyclopentadienyl. The Cp 2 *ZrCl 2 and the polymers were characterized by viscosity, molecular weight, elemental analysis, FTIR, NMR spectra, and TGA.

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