| 含水溶液中香豆素类探针对碘离子的荧光增强识别 |
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| 引用本文： | 马文辉,夏威,徐群,韩宏彦,宋波,孙丽微,梁春花. 含水溶液中香豆素类探针对碘离子的荧光增强识别[J]. 化学学报, 2012, 70(7): 917-920 |
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| 作者姓名： | 马文辉 夏威 徐群 韩宏彦 宋波 孙丽微 梁春花 |
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| 作者单位： | 1. 齐齐哈尔大学材料科学与工程学院,齐齐哈尔161006／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
2. 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 |
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| 基金项目： | 黑龙江省普通高等学校青年学术骨干支持计划，齐齐哈尔市科学技术计划 |
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| 摘 要： | 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-,HSO-4,H2PO-4)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.
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| 关 键 词： | 荧光分子探针 I- 香豆素 硫代半卡巴肼 荧光增强 |
Fluorescence-enhancement Sensor for I^- Based on Coumarin in Aqueous Solution |
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| Affiliation: | Ma,Wenhui*,a,b Xia,Weib Xu,Qunb Han,Hongyanb Song,Bob Sun,Liweib Liang,Chunhuab(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) |
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| Abstract: | A novel fluorescent molecular sensor CI based on coumarin thiosemicarbazide for I-was de-signed 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-,HSO-4,H2PO-4).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-. |
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| Keywords: | fluorescent molecular sensor I^- coumarin thiosemicarbazide fluorescence enhancement |
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