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首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >Novel cyclometalated iridium(III)xanthate complexes and their phosphorescence behavior in the presence of metal ions
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Novel cyclometalated iridium(III)xanthate complexes and their phosphorescence behavior in the presence of metal ions

机译:新型环金属化铱(III)黄药酸酯配合物及其在金属离子存在下的磷光行为

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摘要

Two cyclometalated iridium(III)complexes, Ir(dpppz)(ppz)(ipx)and Ir(ppz)_2(ipx)(dpppzH = 1-(2, 6-dimethylphenoxy)-4-phenylphthalazine, ppzH =4-phenylphthalazinone, ipx= isopropyl xanthate), have been synthesized and characterized by single-crystal X-ray diffraction. The photophysical properties of the two complexes were also investigated. Ir(dpppz)(ppz)(ipx)shows orange-red emission at around 606 nm with a phosphorescence quantum yield of ca. 0.0032 and an emission lifetime of 188 ns, while Ir(ppz)_2(ipx)shows orange-red emission at around 599 nm with a phosphorescence quantum yield of ca. 0.00318 and an emission lifetime of 259 ns. The phosphorescence behavior of Ir(ppz)2(ipx)towards different metal cations has also be studied. Its strong phosphorescence is quenched by Hg ~(2+), Cu ~(2+)and Ag ~+ cations. The interaction ratio with Hg ~(2+)is 1:1.
机译:两个环金属化铱(III)络合物Ir(dpppz)(ppz)(ipx)和Ir(ppz)_2(ipx)(dpppzH = 1-(2,6-二甲基苯氧基)-4-苯基邻苯二甲酰,ppzH = 4-苯基邻苯二甲酮, ipx =异丙基黄药)已通过单晶X射线衍射合成并表征。还研究了两种复合物的光物理性质。 Ir(dpppz)(ppz)(ipx)显示约606 nm处的橙红色发射,磷光量子产率约为。 0.0032和188 ns的发射寿命,而Ir(ppz)_2(ipx)显示约599 nm处的橙红色发射,磷光量子产率约为。 0.00318,发射寿命为259 ns。还研究了Ir(ppz)2(ipx)对不同金属阳离子的磷光行为。它的强磷光被Hg〜(2 +),Cu〜(2+)和Ag〜+阳离子淬灭。与Hg〜(2+)的相互作用比为1:1。

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