A new water-stable Tb(III)-based coordination polymer (CP), {[Tb(HCpIDC)(H₂O)₂]·2H₂O}_n (1) (H₄CpIDC = 2-(4-carboxyphenyl)-4,5-imidazole dicarboxylic acid) was synthesized under hydrothermal condition, and characterized by single-crystal and powder X-ray diffraction analyses, infrared analyses, elemental analyses and thermogravimetric analyses. CP 1 exhibited a 2D (3,6)-connected kgd network with the Point Symbol of {4³}₂{4⁶.6⁶.8³} formed by HCpIDC³⁻ anions μ₄ − bridging Tb(III) ions. The solid-state luminescent property of CP 1 was characterized and the results revealed that it exhibits fascinating excitation-wavelength dependent fluorescence property and may be a potential color-tunable fluorescence material. In addition, the luminescent emissions of CP 1 can be enhanced by addition of trace amount of Al³⁺ demonstrating its potential application for detection of Al³⁺ ion.

一种新型的水稳定性基于Tb（III）的配位聚合物（CP）{[Tb（HCpIDC）（H ₂ O）₂ ]·2H ₂ O} _n（1）（H ₄ CpIDC = 2-（4-羧苯基） ）-4,5-咪唑二羧酸）是在水热条件下合成的，并通过单晶和粉末X射线衍射分析，红外分析，元素分析和热重分析进行了表征。CP 1展示了一个2D（3,6）连接的kgd网络，其点符号为{4 ³ } ₂ {4 ⁶ .6 ⁶ .8 ³ }由HCpIDC ^3-阴离子μ形成_4- 桥接Tb（III）离子。对CP 1的固态发光特性进行了表征，结果表明，它具有令人着迷的激发波长依赖性荧光特性，并且可能是潜在的颜色可调荧光材料。另外，可以通过添加痕量的Al ³⁺来增强CP 1的发光，这证明了其在检测Al ³⁺离子方面的潜在应用。