标题:Triarylboranes with a 2-Dimesitylboryl-2 '-(N,N-dimethylamino)biphenyl Core Unit: Structure-Property Correlations and Sensing Abilities to Discriminate Between F- and CN- Ions
作者:Wang, Chen; Jia, Jiong; Zhang, Wei-Ning; Zhang, Hong-Yu; Zhao, Cui-Hua
作者机构:[Wang, Chen; Jia, Jiong; Zhang, Wei-Ning; Zhao, Cui-Hua] Shandong Univ, Minist Educ, Key Lab Special Funct Aggregated Mat, Sch Chem & Chem Engn, Jinan 更多
通讯作者:Zhao, CuiHua
通讯作者地址:[Zhao, CH]Shandong Univ, Minist Educ, Key Lab Special Funct Aggregated Mat, Sch Chem & Chem Engn, Jinan 250100, Peoples R China.
来源:CHEMISTRY-A EUROPEAN JOURNAL
出版年:2014
卷:20
期:50
页码:16590-16601
DOI:10.1002/chem.201403975
关键词:charge transfer; cyanides; fluorides; sensors; triarylboranes
摘要:A series of triarylboranes, in which different substituents are introduced at the para position of the dimethylamino group of a 2-dimesitylboryl-2'-(N,N-dimethylamino)biphenyl core unit, have been comprehensively investigated to explore the effect of structural modification on photo-physical properties. The introduction of electron-accepting substituents would facilitate the HOMO -> LUMO charge transfer (CT) transition. In contrast, the intramolecular CT transition is significantly prohibited when electron-donating substituents are incorporated. Notably, the HOMO -> LUMO CT transition mainly consists of the transition from the electron-donating amino group to an electron acceptor other than boryl when a strong electron acceptor such as the dicyanovinyl group is present. This dicyanovinyl-substituted compound displays sensing abilities to discriminate fluoride and cyanide ions. In solution in THF, the fluoride ions first bind to the boron center, then attack the alpha-carbon atom of the dicyanovinyl group, whereas the cyanide anion acts on the electron-accepting centers in the reverse sequence. As a result, the absorption and emission change in different manners upon addition of fluoride and cyanide ions.
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:22
Scopus被引频次:24
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923887919&doi=10.1002%2fchem.201403975&partnerID=40&md5=53de262b9270e9731300c86fb4595c0f
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