A new bismuth coordination polymer with proton conductivity and orange-red photoluminescence

Mesoun A.A. Al-Nubi, Aliyu M. Hamisu, Azhar Ariffin, Jinfeng Zhang, George K.H. Shimizu, Hongil Jo, Kang Min Ok, Arief C. Wibowo

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


A new highly water stable bismuth-containing coordination polymer is reported along with its structural characterizations as determined by single crystal and powder X-ray diffraction, elemental, and thermal analysis, featuring an orange-red photoluminescence, and proton conductivity. The compound, (Imi)2[Bi2(pzdc)4]·2H2O (1, pzdc2- = pyrazine-2,3-dicarboxylate; Imi = imidazolium cation), crystallizes in the monoclinic space group, P21/c (a = 14.3725(7) Å, b = 22.4499(10) Å, c = 11.5204(6) Å, and β = 91.1183(16)°), which contains 2D layers of Bi that are connected into a 3D supramolecular structure via extended hydrogen bond network. The interlayered voids are occupied by lattice water and imidazolium ions. Compound 1 is synthesized using an optimized, facile slow evaporation method leading to a water stable compound with a well-defined 1D hydrogen-bonded water feature along the crystallographic a-direction that lead to a proton conductivity of 8.41 × 10−6 S·cm−1 at 85 °C and 95% RH.

Original languageEnglish
Pages (from-to)1810-1822
Number of pages13
JournalJournal of Coordination Chemistry
Issue number11
Publication statusPublished - 2021


  • Bismuth coordination polymer
  • photoluminescence
  • proton conductivity
  • pyrazine-2,3-dicarboxylic acid
  • water stable


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