Crystal structure of zinc coordination polymers based on 1,4-diazabicyclo[2.2.2]octane N,N′-dioxide: Effect of hydrophobicity of carboxylate ligands

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Abstract

Four novel coordination polymers based on 1,4-diazabicyclo[2.2.2]octane N,N′-dioxide (odabco) with the following formulas [Zn(H2O)2(HCOO)2]·odabco (1), [Zn2(OH)(odabco)2(HCOO)2](NO3) (2), [Zn(odabco) (OAc)2] (3, OAc = acetate) and [Zn2(odabco)3(OAc)2](NO3)2 (4) are prepared in solvothermal conditions. The structure of these compounds is determined by single crystal X-ray diffraction. The coordination polymer 1 is formate containing odabco guest molecules. The coordination polymers 2-4 contain odabco as a bridging ligand with additional terminally coordinated carboxylate anions. The system of hydrogen bonds in the layered formates 1 and 2 leads to the formation of 3D supramolecular frameworks. The acetates 3 and 4 containing no strong hydrogen bonds are one-dimensional and layered coordination polymers, respectively. It is established that the nature of the carboxylate anion has a decisive effect on the structure of resulting products.

Original languageEnglish
Pages (from-to)403-411
Number of pages9
JournalJournal of Structural Chemistry
Volume62
Issue number3
DOIs
Publication statusPublished - Mar 2021

Keywords

  • aliphatic ligands
  • carboxylates
  • hydrogen bonding
  • hydrophobic interactions
  • metal-organic framework
  • N-oxides
  • X-ray diffraction
  • zinc complexes

OECD FOS+WOS

  • 2.05 MATERIALS ENGINEERING
  • 1.04 CHEMICAL SCIENCES
  • 1.04.EC CHEMISTRY, INORGANIC & NUCLEAR
  • 1.04.EI CHEMISTRY, PHYSICAL

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