Substituent effect of ancillary ligands on the luminescence of bis[4,6-(di-fluorophenyl)-pyridinato-N,C2']iridium(III) complexes.
Two series of (dfppy)(2)Ir(L(N^O)) with different substituents were designed and successfully synthesized and the effect of substitution at the ancillary ligand on the photophysical and electrochemical properties of (dfppy)(2)Ir(L(N^O)) were investigated. The results indicate that the electron-donating group of -OMe at L(N^O) increases the PL quantum efficiencies of (dfppy)(2)Ir(L(N^O)) and the electron-withdrawing groups of -CF(3) and -F lower the PL quantum efficiencies.
Division of Nanobiomedicine, Suzhou Institute of Nano-Technology and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, PR China.
Yuyang
Y
Zhou
Wanfei
W
Li
Yang
Y
Liu
Liqiang
L
Zeng
Wenming
W
Su
Ming
M
Zhou
D000097:Acetonitriles / Q000737:chemistry; D056831:Coordination Complexes / Q000737:chemistry*; D004563:Electrochemistry; D005456:Fluorescent Dyes / Q000737:chemistry; D007495:Iridium / Q000737:chemistry*; D008024:Ligands; D049449:Luminescence
D000097:Acetonitriles; D056831:Coordination Complexes; D005456:Fluorescent Dyes; D008024:Ligands; D007495:Iridium; C032159:acetonitrile