A thiocyanate-bridging dimeric cyclometalated iridium(III) complex: Synthesis, structure and phosphorescence behaviours towards metal ions

作者：Tong Bihai^*; Qiang Jia Yan; Xu Ya Qing; Mei Qunbo; Duan Taike; Chen Qun; Zhang Qian Feng

来源：Inorganic Chemistry Communications, 2011, 14(12): 1937-1939.

DOI：10.1016/j.inoche.2011.08.029

• Cyclometalated iridium(III)
• Dimeric complex
• Crystal structure
• Photoluminescence
• Phosphorescence

A new neutral dimeric cyclometalated iridium complex containing bridging thiocyanate ligands, [{Ir(mu-SCN) (Pqcm)(2)}(2)] (1, pqcmH = 2-phenyl-quinoline-4- carboxylic acid methyl ester), has been synthesized and structurally characterized. The photoluminescence (PL) spectrum of 1 shows emission maximum at 638 nm with a lifetime of 0.11 mu s and the PL quantum yield is ca. 0.012. The phosphorescence behaviours of 1 towards different solvents and metal ions were also investigated and the strong phosphorescence quenching by acetonitrile and two equivalents of Hg(2+), Cu(2+) and Ag(+) ions were observed.

• 出版日期2011-12
• 单位南京邮电大学; 安徽工业大学; 常州大学