Abstract
New luminescent zinc complexes were obtained by reaction of pyrazolone-based azomethine ligands with Zn(CH3COO)2·2H2O. Complexes fully characterized by elemental analysis, FTIR, ES–MS, NMR, and single crystal X-ray analysis. Title complexes in the solid state demonstrate tunable luminescence from blue to orange by varying of substituents on the aromatic ring. Quantum yields are in the 0.03 to 0.49 range. TGA data shows that obtained complexes demonstrate high thermal stability and can be used as electroluminescent materials. The electrical properties of the complexes under study were considered in the ITO-Zncomplex-Al “sandwich” structure.
Highlights
Coordination compounds demonstrate sustained interest as the platform of functional materials over the past several decades
All the reported complexes were synthesized by the following sequential route
ES-mass spectroscopic data clearly suggested that mononuclear species had formed in each case
Summary
Coordination compounds demonstrate sustained interest as the platform of functional materials over the past several decades. Luminescent complexes may be suitable for use as the emitting agents for the emissive layers in OLED (organic light-emitting diodes), and other organic electronic devices. In both cases, the key factor determining the practical use of such complexes is their intense luminescence in combination with a low price [7,8,9]. Extensive research work in recent decades has led to the preparation of a number of new zinc complexes containing organic ligands [10,11,12,13,14,15,16,17,18,19,20,21,22,23,24], which have been used as emitters and electron transporters in OLED research.
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