Synthesis, characterization, and photoluminescence properties of Cu(II), Co(II), Ni(II), and Zn(II) complexes of N-aminopyrimidine-2-thione

Authors : Zülbiye ÖNAL, Hüseyin ZENGİN, Mehmet SÖNMEZ

Pages : 905-914

Doi:10.3906/sag-1209-85

View : 22 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :This research concentrates on the preparation, characterization, and photoluminescence properties of new Coinsert ignore into journalissuearticles values(II);, Niinsert ignore into journalissuearticles values(II);, Cuinsert ignore into journalissuearticles values(II);, and Zninsert ignore into journalissuearticles values(II); complexes of N-aminopyrimidine-2-thione. The ligand and metal complexes were characterized by elemental analysis and spectroscopic studies such as IR, UV/Vis, API-ES, NMR, fluorescence, and magnetic susceptibility measurements. The ligand and the resulting metal complexes gave intense emissions insert ignore into journalissuearticles values(lmax = 408 nm); upon irradiation by ultraviolet light. The photoluminescence quantum yields and long excited-state lifetimes of the ligand and its complexes were calculated. The ligand had photoluminescence quantum yields of 36% and long excited-state lifetimes of 3.40 ns. The photoluminescence intensities and quantum yields of the metal complexes changed upon complexation with various metals. These novel complexes may be of interest as organic emitting material for electroluminescent devices.
Keywords : N aminopyrimidine 2 thione, metal complex, characterization, photoluminescence