李襄宏,谢超异,杜 康,苏显龙,张云林,王秋林.含α,β-不饱和酮的新的环金属钌配合物的合成及其对HSO3-的识别[J].中南民族大学学报自然科学版,2018,(4):13-17
α,β-不饱和酮的新的环金属钌配合物的合成及其对HSO3-的识别
Synthesis of A New Cyclometallated Ruthenium Complex Bearingα, β-Unsaturated Ketone Group and Its Recognition of Bisulfite
  
DOI:10.12130/znmdzk.20180403
中文关键词: 亚硫酸氢根  环金属钌配合物  离子识别  α,β-不饱和酮
英文关键词: bisulfite  cyclometallated ruthenium complex  ion recognition  α,β-unsaturated ketone
基金项目:国家自然科学基金资助项目(21301196)
作者单位
李襄宏,谢超异,杜 康,苏显龙,张云林,王秋林 中南民族大学 化学与材料科学学院武汉 430074 
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中文摘要:
      将 4-(2-吡啶基) 苯乙酮与 3-醛基-7-N, N-二乙基氨基香豆素缩合反应, 获得了具有α,β-不饱和酮结构的C,N-配体(1) ,再将该配体与[Ru(cycme) Cl2]2和 2,2'-二联吡啶反应, 得到了具有 α,β-不饱和酮的环金属钌配合物(2) ,并通过1H NMR, MS 和紫外-可见吸收光谱表征了其结构.结果表明: 该配合物的最大吸收峰位于 475 nm,其摩尔消光系数达到 5.2×104 mol-1 ·L·cm-1 ; 在 PBS 缓 冲溶液中, 可选择性识别 HSO3-, 对 HSO3-检测限为37 μmol /L.
英文摘要:
      A new C,N-ligand (1) containing α,β-unsaturated ketone was synthesized by condensation reaction between 3-aldehyde-7-N, N-ethylaminocoumarin and 4-(2-pyriyl) acetophenone. The C,N-ligand then reacted with [Ru( cycme) Cl2]2and 2,2'-bipyridine to afford a new cyclometallated ruthenium complex (2) bearing α,β-unsaturated ketone, which was characterized by 1H NMR,MS and UV-vis spectra. The results showed that the maximum absorption was centered at 475 nm with molar extinction coefficient as high as 5.2×104 mol-1 ·L·cm-1 . Moreover, the complex exhibited good selectivity and sensitivity to bisulfite in PBS buffered solution, with the detection limit as low as 37 μmol /L.
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