Catalytic polymerization of phenylacetylene with dimeric [Rh(OMe)(cod)] 2  complex in ionic liquids | Zendy

Gil Wojciech | Zendy; Trzeciak Anna M. | Zendy; Ziółkowski Józef J. | Zendy

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Catalytic polymerization of phenylacetylene with dimeric [Rh(OMe)(cod)] 2 complex in ionic liquids

Author(s) -

Gil Wojciech,

Trzeciak Anna M.,

Ziółkowski Józef J.

Publication year - 2006

Publication title -

applied organometallic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.53

H-Index - 71

eISSN - 1099-0739

pISSN - 0268-2605

DOI - 10.1002/aoc.1138

Subject(s) - chemistry , ionic liquid , phenylacetylene , polymerization , pyridinium , tetrafluoroborate , catalysis , rhodium , polymer chemistry , yield (engineering) , medicinal chemistry , carbene , organic chemistry , polymer , materials science , metallurgy

Dimeric rhodium(I) complex [Rh(OMe)(cod)] 2 was found to be an active catalyst of phenylacetylene polymerization to poly(phenylacetylene) (PPA) in ionic liquids containing imidazolium or pyridinium cations. The highest yield of PPA (92%) was obtained in 1‐butyl‐4‐methylpyridinium tetrafluoroborate as reaction medium. The yield of PPA in imidazolium ionic liquids containing BF 4 − or PF 6 − anions increased to 83–99% when Et 3 N or cycloocta‐1,5‐diene were added as co‐catalysts. In 1‐methyl‐3‐octylimidazolium chloride (MOI · Cl) polymerization rate was much lower than in other ionic liquids, although the highest M w (72 400) was obtained. Spectroscopic studies confirmed that [Rh(OMe)(cod)] 2 reacted with MOI · Cl forming new carbene Rh(I) complex, which can participate in the polymerization process. Copyright © 2006 John Wiley & Sons, Ltd.

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