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| We have synthesized 3,3,7,7-tetra[N-ethyl-N-benzyl(acetamide)-2-oxymethyl]-5- oxanonane (EBAOO) and its terbium complex. The crystal structures of the complex were determined: [Tb(EBAOO)]2[Tb(NO3)5]3•H2O, Orthorhombic, a = 40.722 (6) Å, b = 18.418 (3) Å, c = 20.496 (3) Å. In the structure, the rare earth ion satisfies nine coordination. The geometry of the nine-coordinate polyhedron is discussed in terms of the dihedral angle and the mean plane. The luminescence of the complex is noticeable enhanced upon complexation with Ag+, which is due to the suppressing of photoinduced electron transfer (PET) process. Therefore, the terbium complex can be the generation of silver selective fluorescent probe. |
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| Keywords:Ag+ PET crystal fluorescence enhancement |
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