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Anion Responsive Dibenzoyl‐ l ‐Cystine and Luminescent Lanthanide Soft Material
Author(s) -
Zheng Yuhui,
Li Yan,
Tan Chaoliang,
Wang Qianming
Publication year - 2011
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.2011.00910.x
Subject(s) - terbium , luminescence , lanthanide , chemistry , fluorescence , cystine , sol gel , phosphor , ion , inorganic chemistry , polymer chemistry , nuclear chemistry , photochemistry , materials science , nanotechnology , organic chemistry , physics , optoelectronics , quantum mechanics , cysteine , enzyme
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 0.03 x . The stability of the green luminescent gel was rather excellent and the reversibility of the gel can be recycled at least five times.