物理化学学报 >> 2008, Vol. 24 >> Issue (07): 1313-1315.doi: 10.3866/PKU.WHXB20080733

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N3染料对F-的高选择性光学传感性质

杨维春; 凡素华; 王科志   

  1. 北京师范大学化学学院, 北京 100875; 平顶山学院化学化工学院, 河南 平顶山 467002
  • 收稿日期:2008-03-11 修回日期:2008-03-21 发布日期:2008-07-04
  • 通讯作者: 王科志 E-mail:kzwang@bnu.edu.cn

Optically Highly Selective Sensing of Fluoride Ion by N3 Dye

YANG Wei-Chun; FAN Su-Hua; WANG Ke-Zhi   

  1. College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China; College of Chemistry and Chemical Engineering, Pingdingshan University, Pingdingshan 467002, Henan Province, P. R. China
  • Received:2008-03-11 Revised:2008-03-21 Published:2008-07-04
  • Contact: WANG Ke-Zhi E-mail:kzwang@bnu.edu.cn

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摘要： 采用紫外-可见吸收光谱和荧光光谱滴定方法研究了N3染料, cis-Ru(H2dcbpy)2(NCS)2 (H2dcbpy=4,4’-二羧酸-2,2’-联吡啶), 在二甲基亚砜(DMSO)溶液中对F-、Cl-和Br-的识别行为. 结果表明, F-能引起N3的吸收光谱和荧光光谱的明显变化, 能作为高选择性的荧光和比率色度F-传感器. N3与F-相互作用产生一个大的荧光增强因子40, 在已报道的基于Ru(II)配合物的F-传感器中较为罕见.

关键词: 钌, 联吡啶, 氟离子, 荧光传感, 荧光光谱

Abstract: The N3 dye, cis-Ru(H2dcbpy)2(NCS)2 (H2dcbpy=4,4’-dicarboxy-2,2’-bipyridyl), was demonstrated to be a highly selective luminescent and ratiocolorimetric sensors towards fluoride ion over chloride and bromide ions, by means of UV-Vis absorption and emission spectrophotometric titration method in dimethyl sulfoxide(DMSO) solution. Alarge“turn on”emission enhancement factor of 40, observed by the interaction of the N3 with fluoride ion was rather rare among the rutheniumcomplex-based fluoride ion sensors reported to date.

Key words: Ruthenium, Bipyridine, Fluoride ion, Fluorescent sensing, Fluorescence spectrum