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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

Treatment of [Os 3 (CO) 10 (NCMe) 2 ] with an equimolar amount of 4-vinylpyridine, 4-ethynylpyridine and 4-ethylpyridine at room temperature readily gave the cluster complexes [Os 3 (μ-H)(CO) 10 (μ-NC 5 H 3 CH = CH 2 )] 1, [Os 3 (μ-H)(CO) 10 (μ-NC 5 H 3 C≡CH)] 2 and [Os 3 (CO) 10 (μ-H)(μ-NC 5 H 3 CH 2 CH 3 )] 3, respectively. The corresponding ruthenium analogue of 1, [Ru 3 (μ-H)(CO) 10 (μ-NC 5 H 3 CH = CH 2 )] 4, was also prepared in good yield by thermal reaction of Ru 3 (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

Keywords

  • Carbonyl clusters
  • Copolymers
  • Ferrocene
  • Osmium
  • Ruthenium

ASJC Scopus subject areas

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

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