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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：中国化学会创始会士、常务理事，中国化工学会会士
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：应用化学. 精细化工. 化学生物学
办公地点：大连理工大学西部校区知顺楼F-202#
http://peng-group.dlut.edu.cn/
联系方式：大连理工大学西部校区知顺楼F-202 辽宁省大连市高新区凌工路2号，大连116024 课题组网址：http://peng-group.dlut.edu.cn/ E-mail: pengxj@dlut.edu.cn
电子邮箱：pengxj@dlut.edu.cn
Fluorescent Probes for Pd2+ Detection by Allylidene-Hydrazone Ligands with Excellent Selectivity and Large Fluorescence Enhancement
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论文类型：期刊论文
发表时间：2010-11-02
发表刊物：CHEMISTRY-A EUROPEAN JOURNAL
收录刊物：SCIE、EI、PubMed、Scopus
卷号：16
期号：41
页面范围：12349-12356
ISSN号：0947-6539
关键字：affinity; environmental chemistry; fluorescent probes; palladium; rhodamine
摘要：Because palladium is widely used in various catalysts and converters, which results in a high level of contamination of water systems and the soil by residual palladium, there is an urgent need for Pd2+-sensitive and -selective probes. Based on the special affinity of Pd2+ to conjugated double-bond ligands, two fluorescence probes (RPd2 and RPd3) that contain conjugated allylidene-hydrazone ligands that link to colorless rhodamine-spirolactam have been developed. The results show that conjugated allylidene-hydrazones have a much better affinity toward Pd2+, and consequently provide the probes with more acute color change and fluorescence enhancement (approximate to 170-fold), and better selectivity over other metal ions (especially platinum-group elements, or PGEs) than the unconjugated allyl-hydrazine. With richer electron density and a more suitable stereo effect in the allylidene-hydrazone group, RPd2 displays the best specificity toward Pd2+ and affords convenient detection by the naked eye. Its potential application for Pd2+-contaminated water and soil-sample analysis is revealed by proof-of-concept experiments.