Synthesis and characterization of a series of polymer-immobilized clusters of osmium

Wenting Liang*, Dan Li, Pui Ling Lau, Linli Xu, Cheng Yang, Mingdeng Wei, Wesley Ting Kwok Chan, Wai Yeung WONG

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Treatment of [Os3(CO)10(NCMe)2] with an equimolar amount of 4-vinylpyridine, 4-ethynylpyridine and 4-ethylpyridine at room temperature readily gave the cluster complexes [Os3(μ-H)(CO)10(μ-NC5H3CH = CH2)] 1, [Os3(μ-H)(CO)10(μ-NC5H3C≡CH)] 2 and [Os3(CO)10(μ-H)(μ-NC5H3CH2CH3)] 3, respectively. The corresponding ruthenium analogue of 1, [Ru3(μ-H)(CO)10(μ-NC5H3CH = CH2)] 4, was also prepared in good yield by thermal reaction of Ru3(CO)12 with 4-vinylpyridine. Then, five thermally stable polymer-immobilized clusters of osmium 5–9 have been synthesized by the solution copolymerization of triosmium cluster-based monomers 1 and 2 with styrene, methyl methacrylate, vinylferrocene and 4-vinylphenylboronic acid, respectively, in the presence of α,α′-azobis(isobutyronitrile) (AIBN) in chloroform at 60 °C. Characterization of all new compounds was achieved by a combination of FTIR, NMR, MS, GPC, electronic absorption and thermal gravimetric analysis techniques. Crystal structure determinations were also carried out for complexes 1, 3 and 4.

Original languageEnglish
Pages (from-to)8-15
Number of pages8
JournalJournal of Organometallic Chemistry
Volume870
DOIs
Publication statusPublished - 1 Sep 2018

Scopus Subject Areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

User-Defined Keywords

  • Carbonyl clusters
  • Copolymers
  • Ferrocene
  • Osmium
  • Ruthenium

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