A 1D coordination polymer {Pb[C₆H₄(COO)₂][phen]}_n with strong blue fluorescent emission

Abstract

The hydrothermal reaction of 1,3-dicyanobenzene, 1,10-phenanthroline (phen) and Pb(CH₃COO)₂ yields a new 1D coordination polymer, {Pb[C₆H₄(COO)₂][phen]} _n . The 1,3-benzenecarboxylate anion found in the final product was generated in situ during the synthesis by hydrolysis of 1,3-dicyanobenzene. X-ray diffraction shows that complex 1 crystallizes in the triclinic system, space group P 1, a = 7.5442(2) Å, b = 9.7962(3) Å, c = 13.1505(4) Å, α = 69.739(2) Å, β = 80.597(2) Å, γ = 71.377(2) Å, v = 862.48(4) ų, Z = 2, D _c = 2.124 Mg m⁻³. Complex 1 emits strong blue fluorescent light (λem(max) = 482.4 nm) when excited by UV light in the solid state at room temperature.

Keywords:

• Crystal structure
• Coordination polymer
• Hydrothermal syntheses
• Fluorescence
• 1,3-Benzenecarboxylate ligand

Acknowledgements

This work was supported by the Doctor Foundation of Hunan University of Science and Technology (E55106).