The structures and properties of zinc(II) and cadmium(II) coordination polymers based on semi-rigid phenylenediacetate and 1,4-bis(2-methylimidazol-1-ylmethyl)benzene linkers

SEZER G. G., ARICI M., Rixson D., Burrows A. D., YEŞİLEL O. Z., ERER H.

JOURNAL OF SOLID STATE CHEMISTRY, vol.269, pp.246-256, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 269
  • Publication Date: 2019
  • Doi Number: 10.1016/j.jssc.2018.09.017
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.246-256
  • Keywords: Coordination polymer, Phenylenediacetate complexes, 1, 4-bis(2-methylimidazol-1-ylmethyl)benzene, complexes, Zinc(II) complexes, Cadmium(II) complexes, LONG FLEXIBLE BIS(IMIDAZOLE), METAL-ORGANIC FRAMEWORKS, N-DONOR LIGANDS, MAGNETIC-PROPERTIES, CRYSTAL-STRUCTURES, TOPOLOGICAL STRUCTURES, DIVERSITY, LUMINESCENCE, COMPLEXES, SERIES
  • Eskisehir Osmangazi University Affiliated: Yes


A systematic investigation into the reactions of o- and p-phenylenediacetic acid with zinc(II) and cadmium(II) salts in the presence of the semi-rigid 1,4-bis(2-methylimidazol-1-ylmethyl)benzene (pbmeix) co-ligand is reported. Five new coordination polymers - [Zn(mu-opda)(mu-pbmeix)(0.5)](n) 1, {[Zn(mu-ppda)(mu-pbmeix)]center dot H2O}(n) 2, {[Zn(mu-ppda)(mu-pbmeix)]center dot 0.5pbmeix.H2O} 3, [Cd(mu-opda)(mu-pbmeix)]center dot 0.5DMF}(n) 4 and [Cd(mu-ppda)(mu-pbmeix)(0.5)](n) 5 (o/ppda = 1,2-/1,4-phenylenediacetate) - have been prepared and structurally characterised. Compounds 1 and 5 were found to form three-dimensional coordination networks, 2 forms a two-dimensional structure whereas both 3 and 4 form one-dimensional nanotubular structures. Compounds 1 and 4 are opda complexes in which the dicarboxylate shows a tridentate coordination mode in 1 and a tetradentate coordination mode in 4. Compounds 2, 3 and 5 are ppda complexes in which the dicarboxylate adopts bidentate (2, 3) and hexadentate (5) coordination modes. The structure of 2 contains interpenetrated 2D frameworks and is a polycatenane with ppda linkers from one framework passing through Zn-2(mu-pbmeix)(2) rings from a neighbouring framework. The thermal stability of complexes 1-4 and luminescence properties of complexes 1 and 4 are also reported.