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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
A New Tridentate Sulfur Receptor as a Highly Sensitive and Selective Fluorescent Sensor for Cu2+ Ions
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论文类型：期刊论文
发表时间：2013-11-01
发表刊物：CHEMISTRY-AN ASIAN JOURNAL
收录刊物：SCIE、EI、PubMed、Scopus
卷号：8
期号：11
页面范围：2762-2767
ISSN号：1861-4728
关键字：copper; fluorescence; reduction; sensors; spiro compounds
摘要：The introduction of Lawessons reagent into a bis-rhodamine spirolactam system afforded a new fluorescent sensor for Cu2+ ions, SRR, which contained a new tridentate sulfur ligand. SRR showed excellent specificity for Cu2+ ions over other cations (including Cu+, Hg2+, and Fe3+), very high sensitivity (10nM), and a rapid response time (3min). The detection mechanism was investigated by (HNMR)-H-1, (CNMR)-C-13, (PNMR)-P-31, and ESR spectroscopy, MS, and Gaussian calculations. Coordination of a Cu2+ ion to the tridentate sulfur ligand, which promotes ring-opening of the rhodamine groups, followed by a spontaneous reduction reaction (Cu2+ into Cu+), has been proposed as the sensing mechanism.