Synthesis, Photoluminescence and Electrical Study of Pyrazolone-Based Azomethine Ligand Zn(II) Complexes

Alexey Gusev; Elena Braga; Andrey Tyutyunik; Vladimir Gurchenko; Maria Berezovskaya; Mariya Kryukova; Mikhail Kiskin; Wolfgang Linert

doi:10.3390/ma13245698

Synthesis, Photoluminescence and Electrical Study of Pyrazolone-Based Azomethine Ligand Zn(II) Complexes

Materials (Basel). 2020 Dec 14;13(24):5698. doi: 10.3390/ma13245698.

Authors

Alexey Gusev¹, Elena Braga¹, Andrey Tyutyunik¹, Vladimir Gurchenko¹, Maria Berezovskaya¹, Mariya Kryukova², Mikhail Kiskin³, Wolfgang Linert⁴

Affiliations

¹ General and Physical Chemistry Department, Crimean Federal University, 295007 Simferopol, Russia.
² Institute of Chemistry, Saint Petersburg State University, 199034 Saint Petersburg, Russia.
³ N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia.
⁴ Institute of Applied Synthetic Chemistry, Vienna University of Technology, A-1060 Vienna, Austria.

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.

Keywords: Schiff bases; luminescence; metal complexes; pyrazolone-based ligands.

Abstract

Grants and funding