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Original Articles

Hydrothermal syntheses and crystal structures of hybrid materials based on Keggin cluster modified by iron complexes

, , , , , & show all
Pages 1221-1233 | Received 29 Jun 2007, Accepted 04 Jul 2007, Published online: 24 Apr 2008
 

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).

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