文献类型：期刊文献

英文题名：A Benzobisimidazolium-Based Fluorescent and Colorimetric Chemosensor for CO₂

作者：Guo, Zhiqian[2,3,4,5];Song, Na Ri[2,3];Moon, Jong Hun[1];Kim, Myounwoo[1];Jun, Eun Jin[2,3];Choi, Jiyoung[2,3];Lee, Jin Yong[1];Bielawski, Christopher W.[6,7];Sessler, Jonathan L.[6,7,8];Yoon, Juyoung[2,3]

机构：[1]Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea;[2]Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 120750, South Korea;[3]Ewha Womans Univ, Dept Bioinspired Sci, Seoul 120750, South Korea;[4]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[5]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[6]Univ Texas Austin, Dept Chem & Biochem, Austin, TX 78712 USA;[7]Univ Texas Austin, Inst Cellular & Mol Biol, Austin, TX 78712 USA;[8]Yonsei Univ, Dept Chem, Seoul 120749, South Korea

年份：2012

卷号：134

期号：43

起止页码：17846

外文期刊名：JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000310483500003)】；

基金：This work was supported by a Korean National Creative Research Initiative (2012R1A3A2048814) and the World Class University Program (R31-2008-000-10010-0, R32-2010-00010217-0 for J.Y. and J.L.S., respectively). This work was sponsored in part by the U.S. Department of Energy (DE-FG02-01ER15186 to J.L.S.) and the Robert A. Welch Foundation (grants 1018 and F-1621 for J.L.S. and C.W.B., respectively). The work at SKKU was supported by a National Research Foundation grant (No. 2007-0056343) funded by the Korean Government (MEST). Z.G. acknowledges the National Science Foundation of China (61177034).

语种：英文

摘要：A new sensor for the fluorescent and colorimetric detection of CO2 is described. The system utilizes fluoride to activate a tetrapropyl benzobisimidazolium salt and operates in the absence of an exogenous base. On the basis of spectroscopic and theoretical analyses, the mode of action of the present system is ascribed to the fluoride-induced formation of an N-heterocyclic carbene intermediate that reacts with CO2 to form an imidazolium carboxylate.