Fluorescence Quenching in {Ln[Fe(CN)6]·nH2O}x (Ln = Eu(III) or Tb(III))

Abstract

Fluorescent properties of cyanide-bridged Ln(III)–Fe(III) complex assemblies, {Ln[Fe(CN)6]·nH2O}x (n = 4 for Ln = Eu; n = 5 for Ln = Tb), have been investigated in solid state in comparison with those of the 1 : 1 mixtures of K3[Fe(CN)6] and LnCl3·6H2O (Ln = Eu, Tb). Fluorescence of Eu(III) and Tb(III) is almost completely quenched in the complexes but little quenched in the mixtures.

Sol–gel derived terbium hexacyanoferrate modified carbon ceramic electrode: Electrochemical behavior and its electrocatalytical oxidation of ascorbic acid

“…The fundamental aspects of structure and electrochemistry of PB and its analogues have been reviewed by some authors [23][24][25][26]. In recent years, rare-earth MCHFs have been received much attention in many fields, because of their special properties and potential applications [27][28][29][30][31]. Liu and Chen [32] has reported lanthanum hexacyanoferrate (LaHCF) modified electrode by electrochemical scanning at a platinum electrode and characterized the electrode with X-ray power diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and voltammetry.…”

Cyanide-Bridged Lanthanide(III)−Transition Metal Extended Arrays: Interconversion of One-Dimensional Arrays from Single-Strand (Type A) to Double-Strand (Type B) Structures. Complexes of a New Type of Single-Strand Array (Type C)

“…Heterometallic complexes that contain both lanthanide and transition metals bridged by cyanide ligand are of interest because they can be employed as precursors in the preparation of various materials, such as rare earth orthoferrites (perovskitetype oxides), 1 electroceramic 2 and chemical sensor materials, 3 and fluorescent materials. 4 Lanthanides in combination with transition metals have been shown to have a positive effect in promoting heterogeneous catalytic reactions. 5 Cyanide-bridged lanthanide-transition metal arrays offer the potential advantage of simultaneously loading both types of metals onto a surface in an intimate fashion, in a simpler and easier manner than a more conventional technique of separate impregnation of the two metals on the support surface.…”

“…Heterometallic complexes that contain both lanthanide and transition metals bridged by cyanide ligand are of interest because they can be employed as precursors in the preparation of various materials, such as rare earth orthoferrites (perovskite-type oxides), electroceramic and chemical sensor materials, and fluorescent materials . Lanthanides in combination with transition metals have been shown to have a positive effect in promoting heterogeneous catalytic reactions .…”

Synthesis, structure and magnetic property of [Ce(DMSO)2(H2O)Fe(CN)6]

“…Due to the extensive applications in preparing magnetic materials, chemical sensor materials, fluorescent materials, zeolitic-type materials, and so forth, cyanide-bridged lanthanide-transition metal complexes have attracted continuous interest for about two decades [1][2][3][4][5][6][7]. Most of the known cyanide-bridged lanthanide-transition metal complexes contain such ligands as DMF, urea and caprolactam, while DMSO is not common.…”