Time-resolved near-IR luminescence from ytterbium and neodymium complexes of the Lehn cryptand
Time-resolved near-IR luminescence from ytterbium and neodymium complexes of the Lehn cryptand
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DOI：
10.1016/s1387-7003(01)00153-8
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发表时间：
2001-04-01
影响因子：
3.8
通讯作者：
Sammes, PG
中科院分区：
文献类型：
--
作者：
Faulkner, S;Beeby, A;Sammes, PG
Lehn密码在发光镧系离子的研究和应用中得到了广泛的应用。我们已经证明，镱和钕配合物也是发光的。镱配合物的发光寿命与确定球内水分子数的既定模型吻合良好。相比之下，与氨基羧酸配体相比，钕配合物在水介质中表现出异常长的寿命。这种行为可能是由于隐窝中近似C-H振荡子的数量相对较少。(C) 2001 Elsevier Science B.V.版权所有
The Lehn cryptand has been widely applied to the study and application of luminescent lanthanide ions. We have demonstrated that the ytterbium and neodymium complexes are also luminescent. The luminescence lifetimes of the ytterbium complex fit well to established models for determining the number of inner sphere water molecules. By contrast, the neodymium complex exhibits unusually long lifetimes in aqueous media when compared to those observed with aminocarboxylate ligands. This behaviour may be ascribed to the relatively small number of proximate C-H oscillators in the cryptate. (C) 2001 Elsevier Science B.V. All rights reserved.