标题:New cyano functionalized silanes: aggregation-induced emission enhancement properties and detection of 2,4,6-trinitrotoluene
作者:Linlin Wang;Dengxu Wang;Haifeng Lu
作者机构:[Wang, L] Key Laboratory of Special Functional Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, 更多
通讯作者:Feng, S
通讯作者地址:[Feng, SY]Shandong Univ, Key Lab Special Funct Aggregated Mat, Minist Educ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China.
来源:Applied Organometallic Chemistry
出版年:2013
卷:27
期:9
页码:529-536
DOI:10.1002/aoc.3025
关键词:cyano functionalized silanes;H-type aggregates;AIEE;TNT detection
摘要:Two novel tetrahedral silicon-centered cyano functionalized silanes, namely bis(4-cyanophenylethynyl)dimethylsilane (CN-1) and bis(4-cyanophenylethynyl) diphenylsilane (CN-2), have been synthesized and well characterized. They demonstrated unusual aggregation-induced emission enhancement (AIEE) properties in the H-type aggregation state with nanoparticle aggregate formation. Further study shows that the 4-cyanophenylethynyl unit is the structure base to induce the AIEE phenomenon and the silicon core may enhance the AIEE effect. By single-crystal analysis, the twisted tetrahedral conformation of silicon core and restricted intramolecular motions are speculated as the AIEE mechanism for these unusual H-type aggregates of CN-1 and CN-2. Moreover, both CN-1 and CN-2 show an obvious fluorescent quenching response to 2,4,6-trinitrotoluene (TNT) in THF solution, making them promising candidates in the application of explosive detection. Copyright ? 2013 John Wiley & Sons, Ltd.
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:7
Scopus被引频次:7
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84883280740&doi=10.1002%2faoc.3025&partnerID=40&md5=8d52f0de3b2ee879209b11f4623046e0
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