Citation: Ce XU, Kang DU, Lin TAN, Xiang-Hong LI, Bing-Guang ZHANG, Ding-Guo TANG. Cycloruthenated Complex Based on 3-Ethyl-1-(thiophen-2-yl)imidazolium: Synthesis and Recognizing Hg²⁺[J]. Chinese Journal of Inorganic Chemistry, ;2022, 38(2): 220-226. doi: 10.11862/CJIC.2022.036 shu

Cycloruthenated Complex Based on 3-Ethyl-1-(thiophen-2-yl)imidazolium: Synthesis and Recognizing Hg²⁺

School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430073, China

Corresponding author: Xiang-Hong LI, lixhchem@mail.scuec.edu.cn
Received Date: 9 June 2021
Revised Date: 16 December 2021

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A new cyclometalated ruthenium complex[Ru(L)(bpy)₂]⁺ (1) was synthesized by using 3-ethyl-1-(thiophen-2-yl)imidazolium (L) and 2, 2'-bipyridine (bpy), which has been characterized by NMR and HRMS. The interactions between complex 1 and common metal ions were investigated by UV-Vis absorption spectra. Only upon the addition of Hg²⁺, the absorption was blue-shifted from 548 to 448 nm companied with the solution color varying from red to yellow. By analyzing absorption and MS spectra, the mechanism of complex 1 sensing to Hg²⁺ could be attributed to the possible conversion of coordination mode from Ru—C to Ru—S resulting from the interaction between Hg²⁺ and S.
- cyclometalated ruthenium complex,
- MLCT absorption,
- ion recognition
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沈阳化工大学材料科学与工程学院沈阳 110142

Cycloruthenated Complex Based on 3-Ethyl-1-(thiophen-2-yl)imidazolium: Synthesis and Recognizing Hg2+

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通讯作者: 陈斌, bchen63@163.com

Cycloruthenated Complex Based on 3-Ethyl-1-(thiophen-2-yl)imidazolium: Synthesis and Recognizing Hg²⁺