University of Illinois Urbana-Champaign

Synthesis, Characterization, and Ring -Opening Metathesis Polymerization Activity of Pentamethylcyclopentadienyl Osmium Complexes

Brumaghim, Julia Lynn

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Description

Title
Synthesis, Characterization, and Ring -Opening Metathesis Polymerization Activity of Pentamethylcyclopentadienyl Osmium Complexes
Author(s)
Brumaghim, Julia Lynn
Issue Date
1999
Doctoral Committee Chair(s)
Girolami, Gregory S.
Department of Study
Chemistry
Discipline
Chemistry
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Chemistry, Polymer
Language
eng
Abstract
Several acetonitrile complexes have been prepared; among these are [Cp*Os(CH 3CN)3][PF6], [CP*Os(PPh3)2(CH 3CN)][PF6], and [Cp*Os(COD)(CH3CN)]-[PF6 ]. Addition of 1,3-cyclooctadiene to Cp*2Os2Br 4 in refluxing ethanol affords the allyl complex Cp*Os(eta 3-C8H13)Br2. Treatment of the dimethyl compound Cp*Os(eta3-C4H7)Me2 with HBF4 and water affords the aqua-substituted complex, [Cp*Os(eta3-C4H7)(OH2)][BF 4](eta3-C4H7 =eta3-CH 2CMeCH2). The unusual bridging anilide complex Cp*2 Os2(NPh)2Br2 is synthesized by treating Cp*2Os2Br4 with LiNHPh in ether.
Graduation Semester
1999
Type of Resource
text
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http://hdl.handle.net/2142/84443

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