Synthesis and electroluminescent property of ternary complexes Eu(TTA)3M

Synthesis and luminescence properties of 2‐(benzylcarbamoyl)phenyl derivatives and their europium complexes

“…It can be observed in Table 4 and Figs. 5 and 6 that the excitation spectra of (EuL [1][2][3][4][5] 1, 3) were similar, as measured under 614 nm emission wavelength, and their maximum excitation peaks showed at 395 or 356 nm. Emission spectra of (EuL [1][2][3][4][5] 1, 3) were also similar and showed characteristic red luminescence of europium ion; the strongest emission peak appeared at 615 nm.…”

“…IR spectra of the free ligands showed bands at 1740-1748 cm À1 and 1630-1653 cm À1 , which were assigned to the stretch vibration of the carbonyl group (υ(C = O)), and υ(C-O-C) appeared at 1198-1206 cm À1 . In the IR spectra of the complexes (EuL [1][2][3][4][5] 1, 3), the absorption band for n(C = O) in the high frequency region remained unchanged but shifted about 8 cm À1 in the low frequency region. As a result, these data indicated that only the oxygen atom of amide carbonyl group was coordinated to the europium ion.…”

“…Analytical data for the complexes are listed in Table 1. Results of elemental analysis indicated that the composition of the six novel europium complexes conformed to (EuL [1][2][3][4][5][6] (13).…”

“…Rare earth complexes are currently attracting considerable attention due to their special physical and chemical properties; i.e. electric, magnetic and catalytic attributes . Since rare earth complexes can show narrow emission bands and hypersensitivity to coordination environments, researchers have paid particular attention to their luminescence properties .…”

Electrospun Europium Complex/Polymer Composite Microfibers and Its Modified Photoluminescence Properties

“…In order to overcome these shortcomings, one possible way is to disperse rare earth complexes into polymer matrixes which have many advantages such as rich source, easy synthesis and molding, good mechanics, light weight and good stability etc. [1][2][3][4][5][6][7][8][9]. In recent years, composites based on rare earth complexes and polymers have been studied extensively because they are found to have some good characters and applications [1][2][3][4][5][6][7][8][9].…”