Abstract
Three new organic-inorganic hybrid complexes based on the Keggin polyoxometalates (POMs) modified by transition metal iron and N-ligand organic moiety: [Fe(phen)3]2 (1) [Fe(phen)2(H2O)]2 · 2H2O (2) and [Fe(phen)3]2 · 0.5H2O (3) (phen = 1,10-phenanthroline) have been hydrothermally synthesized and structurally characterized. Crystal data for complex 1: C72H48Fe2M12N12O41PV, triclinic, , a = 11.6618(2) Å, b = 13.8523(2) Å, c = 14.9168(2) Å, α = 105.87(3)°, β = 93.103(2)°, γ = 96.609(2)°, V = 2293.2(5) Å3, Z = 1; for complex 2: C48H32Fe2PMo12N8O44, triclinic, , b = 13.357(3) Å, c = 13.701(3) Å, α = 69.09(3)°, β = 71.37(3)°, γ = 78.21(3)°, V = 1766.4(6) Å3, Z = 1; for complex 3: C72H50Fe2Mo12N12O41Ge, triclinic, , b = 13.676(3) Å, c = 14.627(3) Å, α = 105.05(3)°, β = 109.64(3)°, γ = 93.07(3) °, V = 2185.6(7) Å3, Z = 1. Other characterizations by element analysis, IR, XPS and TGA analysis are also described. Their electrochemical properties have been studied in the paper.
Acknowledgements
The authors acknowledge financial support from the National Science Foundation of China (20671016).