Wentong Chen, Rong-Hua Hu, Hua-Long Chen
Feb 1, 2015
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Journal
Journal of the Iranian Chemical Society
Abstract
A gadolinium compound [Gd(TPPS)]n·nH3O (1) (TPPS = tetra(4-sulfonatophenyl)porphyrin) was synthesized by a hydrothermal reaction. Compound 1 was characterized by FT-IR, UV–vis spectra, fluorescence, quantum yield, luminescence lifetime, CV and X-ray diffraction analyses. Compound 1 features a three-dimensional (3-D) porous open framework with lattice water molecules residing at the voids. The 3-D framework is comprised of TPPS moieties and Gd3+ nodes. Photoluminescence measurements reveal that compound 1 exhibits a sharp emission band in the red region with an emission quantum yield being of 5.8 %. Nanosecond transient spectra discover that the fluorescence lifetime of 1 is 11.7 ns. The voltammetric behavior of 1 displays one reduction and two oxidation potentials at −1.75, −0.71 and −1.07 V, respectively.Graphical AbstractA gadolinium compound was synthesized via a hydrothermal reaction. It features a 3-D porous open framework which is comprised of TPPS moieties and Gd3+ nodes. It exhibits a sharp emission band in the red region with an emission quantum yield being of 5.8 % and a fluorescence lifetime being of 11.7 ns. The CV displays one reduction and two oxidation potentials.