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苯基噌啉类铱配合物的合成及其铁(Ⅲ)离子传感 被引量:2

Synthesis of a Iridium(Ⅲ) Complex Based on Phenylcinnoline Derivative and its Sensor Property for Fe^(3+)
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摘要 以3,4-二苯基噌啉为环金属配体,二氢二(l-甲基-2-巯基咪唑)硼为解离配体合成一种中性环金属铱配合物Ir(dpci)2{H2B(mt)2}。配合物的结构通过质谱、核磁进行表征。结果表明:Ir(dpci)2{H2B(mt)2}在二氯甲烷溶液中的最大发射波长为622 nm,在固态时的最大发射波长为720 nm;溶液中的磷光寿命为0.5μs,量子产率为0.54。与金属离子的荧光滴定实验表明该配合物具有对Fe3+的选择性磷光淬灭性能,能作为Fe3+的磷光探针。 A neutral cylcometalatcd Ir(III) complex Ir(dpci)2{H2B(mt)2} was synthesized with cylcometalated ligand of 3, 4-diphenylcinnoline and assistant ligand of H2B(mt)2 (mt=methimazolyl). The structure of Ir(dpci)2{H2B(mt)2} was characterized by the NMR and mass spectroscopies. The new iridium complex displayed a strong emission band centered at 622 nm in a CH2Cl2 solution and 720 nm in solid. Its lifetime is 0.5 us and quantum yield is ca. 0.54 in a CH2Cl2 solution. The results of fluorescent titration experiments indicated that Ir(dpci)2{H2B(mt)2} is a phosphorescent "turn-off" probe for Fe3+ with high selectivity.
出处 《安徽工业大学学报(自然科学版)》 CAS 2012年第1期1-5,共5页 Journal of Anhui University of Technology(Natural Science)
基金 国家自然科学基金(50903001 50803027) 安徽工业大学SRTP资助(11002)
关键词 铱(III)配合物 苯基噌啉 铁(III)离子探针 Iridium(III) complex Phenylcinnoline Fe3+ probe
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