A trinuclear Cu(II) precursor for solvatochromically distinguishing CH3OH from C2H5OH |
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| Authors: | Xue-Mei Gao Wen Ma Gang Jin Jing-Zhe Li Xue-Wen Wei |
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| Affiliation: | 1. State Key Laboratory of High-Efficiency Coal Utilization and Green Chemical Engineering, and Ningxia Key Laboratory for Photovoltaic Materials, Ningxia University, Yin-Chuan, Ningxia, People's Republic of China;2. Grinm Bohan (Beijing) Publisher Ltd., Co, Beijing, People's Republic of China;3. Ningxia Institute of Grape and Wine, Ningxia University, Yin-Chuan, Ningxia, People's Republic of China |
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| Abstract: | AbstractIn order to develop an easy and rapid identification method for distinguishing CH3OH from C2H5OH, a new carbonate-based trinuclear Cu(II) precursor, [Cu3(bpy)6(μ3-CO3)(CH3OH)](BF4)4·(CH3OH)2·(H2O)2 (1), has been isolated. We report here the synthesis, crystal structure, and characterizations by various spectroscopic (IR, UV–Vis, powder XRD) techniques, as well as the solvatochromic behavior of this coordination compound. Its X-ray crystal structure reveals that the main structure of 1 consists of three [(bpy)2Cu]2+ centers, which are bridged by carbonate via a μ3-η1,η1,η1 fashion. Strong O–H?O hydrogen bonding between the carbonate and solvent molecules has been observed for the first time in similar structures. Its ground powder exhibits solvatochromic behavior that selectively distinguishes CH3OH from C2H5OH. |
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| Keywords: | Copper solvatochromism carbonate hydrogen bonding |
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