Affiliation of Author(s):
化学与化工学院
Key Words:
中文关键字：银；铽；荧光探针，英文关键字：3, 3, 7, 7-Tetra[N-ethyl-N-benzyl(acetamide)-2-oxy
Abstract:
We have synthesized 3,3,7,7-tetra[N-ethyl-Nbenzyl(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 noticeably enhanced upon complexation with Ag+, which is due to the suppression of photoinduced electron transfer (PET) process. Therefore, the terbium complex can be used as a selective fluorescent silver probe.
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