scholarly journals New perspectives on the annihilation electrogenerated chemiluminescence of mixed metal complexes in solution

2016 ◽  
Vol 7 (8) ◽  
pp. 5271-5279 ◽  
Author(s):  
Emily Kerr ◽  
Egan H. Doeven ◽  
Gregory J. Barbante ◽  
Conor F. Hogan ◽  
David J. Hayne ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Metal Complexes ◽  
Electrogenerated Chemiluminescence ◽  
Mixed Metal ◽  
Mixed Metal Complexes

We examine energy transfer and quenching within annihilation ECL systems comprising mixed metal-complexes in solution, and show the dependence of the emission intensities on luminophore concentration and the applied potentials.

scholarly journals Mono- and Mixed Metal Complexes of Eu3+, Gd3+, and Tb3+ with a Diketone, Bearing Pyrazole Moiety and CHF2-Group: Structure, Color Tuning, and Kinetics of Energy Transfer between Lanthanide Ions

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2655
Author(s):  
Victoria E. Gontcharenko ◽  
Mikhail A. Kiskin ◽  
Vladimir D. Dolzhenko ◽  
Vladislav M. Korshunov ◽  
Ilya V. Taydakov ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Metal Complexes ◽  
Group Structure ◽  
Excitation Energy Transfer ◽  
Lanthanide Ions ◽  
X Ray Diffraction ◽  
Transfer Rates ◽  
Mixed Metal ◽  
Mixed Metal Complexes ◽  
Kinetics Of

Three novel lanthanide complexes with the ligand 4,4-difluoro-1-(1,5-dimethyl-1H-pyrazol-4-yl)butane-1,3-dione (HL), namely [LnL3(H2O)2], Ln = Eu, Gd and Tb, were synthesized, and, according to single-crystal X-ray diffraction, are isostructural. The photoluminescent properties of these compounds, as well as of three series of mixed metal complexes [EuxTb1-xL3(H2O)2] (EuxTb1-xL3), [EuxGd1-xL3(H2O)2] (EuxGd1-xL3), and [GdxTb1-xL3(H2O)2] (GdxTb1-xL3), were studied. The EuxTb1-xL3 complexes exhibit the simultaneous emission of both Eu3+ and Tb3+ ions, and the luminescence color rapidly changes from green to red upon introducing even a small fraction of Eu3+. A detailed analysis of the luminescence decay made it possible to determine the observed radiative lifetimes of Tb3+ and Eu3+ and estimate the rate of excitation energy transfer between these ions. For this task, a simple approximation function was proposed. The values of the energy transfer rates determined independently from the luminescence decays of terbium(III) and europium(III) ions show a good correlation.

scholarly journals Di(μ-phosphido)cobalt-und -nickel-Verbindungen mit Trimethylphosphanliganden/ Di(μ-phosphido)cobalt and Nickel Compounds with Trimethylphosphine Ligands

1988 ◽  
Vol 43 (8) ◽  
pp. 927-932 ◽  
Author(s):  
Hans-Friedrich Klein ◽  
Michael Gaß ◽  
Ulf Zucha ◽  
Brigitte Eisenmann
Keyword(s):  
Metal Complexes ◽  
High Yield ◽  
Symmetric Products ◽  
Space Group ◽  
Mixed Metal ◽  
Nickel Compounds ◽  
Mixed Metal Complexes ◽  
Cobalt And Nickel

AbstractSeveral fortuitous preparations and high yield rational syntheses for [(Me3P)2M(PMe2)]: (1: M = Co; 2: M = Ni) are described. 1 crystallizes in the space group P1̄ (no. 2); a = 975.6(5). b = 943.6(5), c - 904.2(5) pm. α= 63.8(1)°, β = 79.1(1)°, γ = 72.8(1)°. Mixed metal complexes L2Co(PR2)2NiL2 (L = PMe3; R = Me, Ph) evaded detection giving symmetric products exclusively. An improved synthesis of LiP(C6H5)2·dioxane is also described.

Sign in / Sign up

Export Citation Format

Share Document