Anion Responsive Dibenzoyl-L-Cystine and Luminescent Lanthanide Soft Material

作者：Zheng, Yuhui; Li, Yan; Tan, Chaoliang; Wang, Qianming^*

来源：Photochemistry and Photobiology, 2011, 87(3): 641-645.

DOI：10.1111/j.1751-1097.2011.00910.x

A mild sol-gel technique was used to incorporate terbium dibenzoyl-L-cystine complex into silica and green luminescent hybrid material was fabricated. (1)H NMR and fluorescence spectroscopy revealed the hybrids can recognize F(-) anions through hydrogen bonding formation and had no sense in binding other halide or HSO(4)(-). Furthermore, a luminescent hydrogel was successfully designed by immobilizing a terbium activated phosphor (Gd(0.1)Ce(0.9)PO(4):Tb) into molecular hydrogelator (dibenzoyl-L-cystine). The Tb(III) emission in hydrogel media gave a distinguished enhancement based on temperature increase and the function conforms to exponential equation y = 1160.6 exp(0.03x). The stability of the green luminescent gel was rather excellent and the reversibility of the gel can be recycled at least five times.

• 出版日期2011-6
• 单位华南师范大学