化学学报 ›› 2012, Vol. 70 ›› Issue (07): 917-920 .DOI: 10.6023/A1110104 上一篇    下一篇

研究论文

含水溶液中香豆素类探针对碘离子的荧光增强识别

马文辉a,b, 夏威b, 徐群b, 韩宏彦b, 宋波b, 孙丽微b, 梁春花b   

  1. a 齐齐哈尔大学材料科学与工程学院 齐齐哈尔 161006;
    b 齐齐哈尔大学精细化工黑龙江省普通高校重点实验室 齐齐哈尔 161006
  • 收稿日期:2011-10-10 修回日期:2011-12-31 出版日期:2012-04-14 发布日期:2012-02-21
  • 通讯作者: 马文辉
  • 基金资助:

    黑龙江省普通高等学校青年学术骨干支持计划(No. 1152G054)和齐齐哈尔市科学技术计划(No. GYGG2010-05-1)资助项目.

Fluorescence-enhancement Sensor for I- Based on Coumarin in Aqueous Solution

Ma Wenhuia,b, Xia Weib, Xu Qunb, Han Hongyanb, Song Bob, Sun Liweib, Liang Chunhuab   

  1. a School of Materials Science and Engineering, Qiqihar University, Qiqihar 161006;
    b Key Laboratory of Fine Chemicals Qiqihar University, College of Heilongjiang Province, Qiqihar 161006
  • Received:2011-10-10 Revised:2011-12-31 Online:2012-04-14 Published:2012-02-21
  • Supported by:

    Project supported by the Young Academic Backbone Project of Heilongjiang Province College (No. 1152G054) and the Science and Technology Plan Project of Qiqihar City (No. GYGG2010-05-1).

设计合成了新型含硫代半卡巴肼结构的香豆素类I- 荧光分子探针CI, 其结构用1H NMR, 13C NMR, GC/MS和元素分析进行了表征, 并考察了其光谱性能. 结果表明CI 在中性缓冲溶液中, 在常见阴离子(F-, Cl-, Br-, I-, AcO-,HSO4- , H2PO4-)中能够专一性地识别I-. 滴加I-后引起吸收光谱蓝移80 nm, 荧光光谱蓝移6 nm, 荧光增强5.9 倍, 溶液荧光由黄绿色变为亮蓝色. 其它阴离子的存在并未干扰CI 对I-的检测.

关键词: 荧光分子探针, I-, 香豆素, 硫代半卡巴肼, 荧光增强

A novel fluorescent molecular sensor CI based on coumarin thiosemicarbazide for I- was designed and synthesized. The structure of CI was identified by 1H NMR, 13C NMR, GC/MS and elemental analysis, and the spectral properties of CI was investigated. In neutral buffer solution, CI exhibited specific recognition for I- among anions (F-, Cl-, Br-, I-, AcO-, HSO4-, H2PO4- ). The addition of I- led to 80 nm blue-shift in absorbance maximum, a 6 nm blue-shift in fluorescence maximum, a 5.9-fold fluorescence enhancement and an obvious fluorescence change from yellowish green to brilliant blue. Other anions had no interference for CI to detect I-.

Key words: fluorescent molecular sensor, I-, coumarin, thiosemicarbazide, fluorescence enhancement