Tb3+-containing supramolecular hydrogels: luminescence properties and reversible sol–gel transitions induced by external stimuli
作者:Xinxian Ma、Dawei Yu、Ning Tang、Jincai Wu
DOI:10.1039/c4dt00110a
日期:——
A dual-responsive green-light-emitting supramolecular metal hydrogel (G-gel) was prepared by the reaction of a simple hydrazide-functionalized benzimidazole ligand (L) with Tb(NO3)3. The green luminescence of gelator L is enhanced in the G-gel due to the coordination effect between L and Tb3+. In addition, the G-gel shows different luminescence when in a semisolid state (gel) and in a solid state (xerogel). Remarkable reversible solâgel transitions induced by temperature or pH were observed for this G-gel.
通过简单的酰肼功能化苯并咪唑配体(L)与 Tb(NO3)3 反应制备了一种双响应绿光发光超分子金属水凝胶(G-gel)。此外,G-凝胶在半固态(凝胶)和固态(异凝胶)时显示出不同的发光效果。在温度或 pH 值的诱导下,这种 G 凝胶发生了显著的可逆溶胶转变。