Synthesis and Fluorescence of Some Trivalent Lanthanide Complexes

Thin Films of Highly Luminescent Lanthanide Complexes Covalently Linked to an Organic−Inorganic Hybrid Material via 2-Substituted Imidazo[4,5-f]-1,10-phenanthroline Groups

“…The absorption intensity was calculated by subtracting the integrated intensity of the light source with the sample in the integrating sphere, from the integrated intensity of the light source with a blank sample in the integrating sphere. A solution of [Eu(tta) 3 (phen)] in DMF with known quantum yield (36.5%) was used as the reference. 44 Two similar cuvettes were used for both the solid sample (which was placed inside the cuvette) and the reference solution.…”

“…The [Eu(tta) 3 (phen)] complex that was used as the reference complex for the determination of the quantum yield was prepared according to the procedure described by Uekawa et al 48 The purity of the compound was verified by CHN elemental analysis.…”

“…Due to the poor absorption abilities of the lanthanide ions, it is common practice to form complexes of the lanthanide ions with organic ligands that strongly absorb light and transfer the energy to the metal center (antenna effect). [1][2][3][4][5][6][7][8][9] In addition, the ligands expel water from the first coordination sphere, which can cause radiationless deactivation. 10,11 To explore the potential of the complexes for photonic applications (light-converting devices), [12][13][14][15][16][17] it is useful to incorporate the complexes in an inert host matrix.…”

The crystal structure of tris(μ2-1,3-bis(4,4,4-Trifluoro-3-oxido-1-(oxo)but-2-en-1-yl)phenyl-/κ4O,O′:O′′,O′′′)-bis(1,2-dimethoxyethane-O,O′)-diterbium(III)

“…β-diketonate ligands have been widely used to construct di erent luminescent lanthanide complexes for high molar absorption coe cients, long luminescent lifetimes, and high luminescence quantum e ciency [4][5][6][7]. Herein, we report the crystal structure of a dinuclear Tb(III) complex with the 1,3-bis(4,4,4-tri uoro-1,3-dioxobutyl)phenyl ligand.…”

Electrochemiluminescence of Organometallics and Other Transition Metal Complexes

“…In addition, the choice of suitable complexes was also based on the expectation that reduction and oxidation would occur in an appropriate potential range. (45), and tetralm hydroperoxide (47) were prepared according to published procedures.…”