高等学校化学学报

高等学校化学学报 ›› 2006, Vol. 27 ›› Issue (3): 419.

• 研究论文 • 上一篇    下一篇

新型两亲性混配钌配合物的合成及其对Hg2+的选择性“肉眼”识别

李襄宏1,段新方2,李富友1,黄春辉1   

  1. 1.复旦大学先进材料实验室,上海200433;2.北京师范大学化学系,北京100875
  • 收稿日期:2005-04-28 出版日期:2006-03-10 发布日期:2006-03-10
  • 通讯作者: 李富友(1973年出生),男,博士,副教授,从事光电功能材料研究.E-mail:fyli@fudan.edu.cn 段新方(1966年出生),男,博士,副教授,从事有机合成研究.E-mail:xinfangduan@vip.163.com
  • 基金资助:

    国家“八六三”计划(批准号：2002AA302403)、国家自然科学基金(批准号：20490210)和上海市科委基金(批准号：03QB14006,03DZ12031)资助.

Synthesis of New Mixed-ligands Amphiphilic Ruthenium Complex and Its Naked-eye Detectable Recognition of Hg2+

LI Xiang-Hong1,DUAN Xin-Fang2*,LI Fu-You1*,HUANG Chun-Hui1   

  1. 1. Lab of Advanced Material,Fudan University,Shanghai 200433,China;
    2. Department of Chemistry,Beijing Normal University,Beijing 100875,China
  • Received:2005-04-28 Online:2006-03-10 Published:2006-03-10

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摘要：

采用与文献不同的路线合成了4,4′-二(p-甲基苯基)-2,2′-二联吡啶,与文献结果相比,总收率由4.0%提高至15.3%.该化合物和4,4′-二羧基-2,2′-二联吡啶组成混合配体与金属钌配位,合成了两亲性、混配型配合物cis-N,N-4,4′-二(p-甲基)苯基-2,2′-二联吡啶-N,N-4,4′-二羧基-2,2′-二联吡啶-N,N-二异硫氰钌配合物,并用IR,UV-Vis,NMR和Maldi-TOF等手段进行表征.将该两亲性混配钌配合物首次用于对Hg2+的识别中,发现此配合物对Hg2+表现出灵敏的选择性“肉眼”识别:在DMF/乙醇溶液(体积比1∶9)中加入Hg2+后,MLCT态吸收由530nm蓝移到485nm.该配合物与Hg2+以1∶1(摩尔比)结合,检测限可低至0.5×10-6mol/L.

关键词: 两亲性混配钌配合物;MLCT谱;Hg2+离子识别;“肉眼”识别

Abstract:

4,4′-Di(p-methylphenyl)-2,2′-bipyridine was synthesized via modified routine with a high yield of 15.3%,and was used as a ligand to form a new mixed-ligand amphiphilic ruthenium complex,cis-N,N-4,4′-di(p-methylphenyl)-2,2′-bipyridine-N,N-4,4′-dicarboxy-2,2′-bipyridine-N,N-dithiocyanato ruthenium(Ⅱ). This new mixed-ligands amphiphilic ruthenium complex was characterized by IR,UV-Vis,1H NMR and Maldi-TOF MS spectra and firstly used to detect Hg2+Its MLCT absorption(530 nm) was blue-shifted to 485 nm when Hg2+ was added to DMF-ethanol(volume ratio 1∶9) solution of the complex. The complex was combined quantitatively with Hg2+ not with other metal cations by the molar ratio of 1∶1,indicating that it can be used as a selective naked-eye sensor for Hg2+Its detective limit is 0.5×10-6 mol/L.

Key words: Amphiphlic ruthenium complex; MLCT absorption spectrum; Hg2+ recognition; Naked recognition

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