Circularly Polarized Luminescence of Curium: A New Characterization of the 5f Actinide Complexes,Journal of the American Chemical Society

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Circularly Polarized Luminescence of Curium: A New Characterization of the 5f Actinide Complexes
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2012-09-11 , DOI: 10.1021/ja306354n
Ga-Lai Law ₁ , Christopher M Andolina , Jide Xu , Vinh Luu , Philip X Rutkowski , Gilles Muller , David K Shuh , John K Gibson , Kenneth N Raymond

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A key distinction between the lanthanide (4f) and the actinide (5f) transition elements is the increased role of f-orbital covalent bonding in the latter. Circularly polarized luminescence (CPL) is an uncommon but powerful spectroscopy which probes the electronic structure of chiral, luminescent complexes or molecules. While there are many examples of CPL spectra for the lanthanides, this report is the first for an actinide. Two chiral, octadentate chelating ligands based on orthoamide phenol (IAM) were used to complex curium(III). While the radioactivity kept the amount of material limited to micromole amounts, spectra of the highly luminescent complexes showed significant emission peak shifts between the different complexes, consistent with ligand field effects previously observed in luminescence spectra.

中文翻译：

锔的圆偏振发光：5f 锕系化合物的新表征

镧系元素 (4f) 和锕系元素 (5f) 过渡元素之间的一个关键区别是后者中 f 轨道共价键的作用增加。圆偏振发光 (CPL) 是一种不常见但功能强大的光谱，可探测手性、发光复合物或分子的电子结构。虽然镧系元素的 CPL 光谱有很多例子，但这份报告是第一个关于锕系元素的报告。两种基于邻酰胺苯酚 (IAM) 的手性八齿螯合配体用于络合锔 (III)。虽然放射性将材料的量限制在微摩尔量，但高发光复合物的光谱显示出不同复合物之间的显着发射峰位移，这与先前在发光光谱中观察到的配体场效应一致。

更新日期：2012-09-11

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