A copper(ii) metal-organic framework with 2,2-dimethylglutarate and imidazole ligands: synthesis, characterization and catalytic performance for cycloaddition of CO<sub>2</sub> to epoxides


KÖSE YAMAN P., DEMİR S., Denizalti S., ERER H., YEŞİLEL O. Z.

NEW JOURNAL OF CHEMISTRY, vol.48, no.4, pp.1850-1855, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 4
  • Publication Date: 2023
  • Doi Number: 10.1039/d3nj04256a
  • Journal Name: NEW JOURNAL OF CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Biotechnology Research Abstracts, Chemical Abstracts Core, Chimica, Compendex, DIALNET
  • Page Numbers: pp.1850-1855
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

A new three-dimensional (3D) framework with the general formula {[Cu(mu(3)-dmg)(im)(2)]3H(2)O}(n) (1) was synthesized using an aliphatic dicarboxylic acid linker 2,2-dimethylglutarate (dmg(2-)) and nitrogen-containing imidazole ligand (im) under conventional methods. 1 was characterized by FT-IR spectroscopy, elemental analysis, single crystal and powder X-ray diffractions, and thermal analysis techniques. Additionally, the optical and topological properties of compound 1 were also investigated. The single crystal X-ray data exhibit that 1 is an interesting 3D framework and it has a I4(1)/a space group, which originates from two imidazole ligands, one dmg and three lattice water molecules. Topologically, 1 displays a lvt-a topology with the point symbol of {4.8.10}. In addition, the catalytic activity of compound 1 was investigated in the CO2 conversion into cyclic carbonates. It was found that compound 1 was an active catalyst even at low catalyst loading under 0.1 MPa CO2 at 80 degrees C. The yields of 23-99% were obtained. Compound 1 can be recycled at least four times without significant compromise in the activity in the first three catalytic reactions.