Zhang Bin, Zhang Shi-Hui, Liu Bo, Yue Ke-Fen, Hou Lei, Wang Yao-Yu
College of Chemistry & Pharmacy , Northwest A&F University , Yangling 712100 , P. R. China.
Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science , Northwest University , Xi'an 710069 , P. R. China.
Inorg Chem. 2018 Dec 17;57(24):15262-15269. doi: 10.1021/acs.inorgchem.8b02554. Epub 2018 Nov 27.
By employing a pyridyl-decorated dicarboxylic acid ligand, 3-(2',5'-dicarboxylphenyl)pyridine acid (Hdcpy), a three-dimensional In-based metal-organic framework, HO[In(dcpy)(OH)]·3DMF·4HO (1), with a good chemical stability toward acid and base has been synthesized. The compound 1 shows an uncommon (3,8)-connected tfz-d; UO topological net based on linear In(COO)(OH) clusters and also contains one-dimensional open channels. Particularly, 1 contains two types of dcpy linkers, in which the pyridyl group in one participates in coordination with the In ion, whereas that in the other is uncoordinated but hangs in the inner sides of the channels as functionalized sites. Gas adsorption experiments demonstrate that 1 is able to selectively adsorb CH, CH, and CO over CH. Simultaneously, 1 shows a highly selective and sensitive fluorescence detection toward Fe ion in water with good recyclability.
通过使用吡啶基修饰的二羧酸配体3-(2',5'-二羧基苯基)吡啶酸（Hdcpy），合成了一种三维铟基金属有机框架HO[In(dcpy)(OH)]·3DMF·4HO（1），其对酸和碱具有良好的化学稳定性。化合物1呈现出一种罕见的基于线性In(COO)(OH)簇的(3,8)-连接tfz-d; UO拓扑网络，并且还包含一维开放通道。特别地，1包含两种类型的dcpy连接体，其中一个中的吡啶基参与与铟离子的配位，而另一个中的吡啶基未配位但悬挂在通道内侧作为功能化位点。气体吸附实验表明，1能够在CH之上选择性地吸附CH、CH和CO。同时，1对水中的铁离子表现出高度选择性和灵敏的荧光检测，并且具有良好的可回收性。
