A trinuclear Cu(II) precursor for solvatochromically distinguishing CH3OH from C2H5OH

A trinuclear Cu(II) precursor for solvatochromically distinguishing CH3OH from C2H5OH
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一种三核 Cu(II) 前体,用于通过溶剂色谱法区分 CH3OH 和 C2H5OH

DOI:
10.1080/00958972.2019.1706171
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发表时间:
2019-12
影响因子:
1.9
通讯作者:
Kuan-Guan Liu
Kuan-Guan Liu
中科院分区:
化学4区
文献类型:
--
作者:
Xue-Mei Gao;Wen Ma;Gang Jin;Jing-Zhe Li;Xue-WenWei;Kuan-Guan Liu

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为了建立一种简便、快速的鉴定方法,以区分CH_3OH和C_2 H_5 OH,分离出一种新的碳酸盐基三核Cu(Ⅱ)前体[Cu_3(bpy)_6(l ~ 3-CO_3)(CH_3OH)](BF_4)_4(CH_3OH)_2(H_2 O)_2(1)。我们在这里报告的合成,晶体结构,并通过各种光谱(IR,UV-Vis,粉末XRD)技术的表征,以及该配位化合物的溶剂化变色行为。X射线衍射分析表明,化合物1的主要结构是由3个[(bpy)2Cu] 2 π中心组成,它们之间通过碳酸根以l3-g1,g1,g1的方式连接。首次在类似结构中观察到碳酸酯和溶剂分子之间的强O-HO氢键。其研磨粉末表现出溶剂化显色行为,选择性地区分CH 3OH和C2 H5 OH。
In 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(l3-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]2þ centers, which are bridged by carbonate.via a l3-g1,g1,g1 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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