Yang Weiting, Tian Hong-Rui, Li Jian-Ping, Hui Yuan-Feng, He Xiang, Li Jiyang, Dang Song, Xie Zhigang, Sun Zhong-Ming
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin, 130022, P.R. China.
Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai, 200444, P.R. China.
Chemistry. 2016 Oct 17;22(43):15451-15457. doi: 10.1002/chem.201602779. Epub 2016 Sep 9.
Rational selection and modification of rare earth metal centers and photoactive organic linkers enables designable multiphotofunctionality to come to fruition in new hybrid coordination polymer materials. By using a viologen-functionalized diphosphonate linker, two terbium phosphonate compounds (Tb-1 and Tb-2) have been constructed, which display reversible photochromic reactions in response to UV light and soft X-ray irradiation. In addition, the photo-induced electron-transfer reaction can modulate the luminescent emission to thus realize photoluminescence switching behavior. Furthermore, both terbium phosphonates can serve as highly sensitive sensors to probe Cu in solution through their luminescence. Thus, they represent the first photochromic examples of lanthanide phosphonate-based materials with photomodulated luminescence and sensitive detection of metal ions.
对稀土金属中心和光活性有机连接体进行合理选择与修饰，可使新型杂化配位聚合物材料实现可设计的多光功能。通过使用紫精功能化的二膦酸盐连接体，构建了两种铽膦酸盐化合物（Tb-1和Tb-2），它们在紫外光和软X射线照射下表现出可逆的光致变色反应。此外，光诱导电子转移反应可调节发光发射，从而实现光致发光开关行为。此外，两种铽膦酸盐都可作为高灵敏度传感器，通过其发光来探测溶液中的铜。因此，它们代表了基于镧系膦酸盐材料的首个具有光调制发光和金属离子灵敏检测功能的光致变色实例。
