通过离散双金属结构中的Cr(III)敏化将基于镧系元素的近红外发射体（钕、镱）的寿命延长至毫秒范围。
Extending lifetimes of lanthanide-based near-infrared emitters (Nd, Yb) in the millisecond range through Cr(III) sensitization in discrete bimetallic edifices.
作者信息
Imbert Daniel, Cantuel Martine, Bünzli Jean-Claude G, Bernardinelli Gérald, Piguet Claude
机构信息
Institute of Molecular and Biological Chemistry, Swiss Federal Institute of Technology, BCH 1402, 1015 Lausanne, Switzerland.
出版信息
J Am Chem Soc. 2003 Dec 24;125(51):15698-9. doi: 10.1021/ja0386501.
A [Cr(alpha,alpha'-diimine)3]3+ chromophore is used as a donor for sensitizing NdIII and YbIII near-infrared (NIR) emitters in the heterobimetallic helicates [LnCrIIIL3]6+. The intramolecular CrIII --> LnIII energy transfer process controls the population of the lanthanide-centered emitting levels, thus leading to unprecedented extension of the NIR luminescence decay times in the millisecond range for Nd and Yb ions incorporated in coordination complexes.
[Cr(α,α'-二亚胺)3]3+发色团用作供体，用于敏化异双金属螺旋配合物[LnCrIIIL3]6+中的NdIII和YbIII近红外（NIR）发光体。分子内CrIII→LnIII能量转移过程控制着以镧系元素为中心的发射能级的布居，从而使掺入配位配合物中的Nd和Yb离子的近红外发光衰减时间前所未有的延长至毫秒范围。
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