The reaction of phosphole/arsole starting materials with a series of halide abstraction reagents afforded their respective phosphenium/arsenium complexes. UV–vis absorption and luminescence studies on these cations showed interesting emission profiles, which were found to be dependent upon counterion choice. The addition of a reductant to the phosphole reagent garnered a dimeric species with a central P–P bond, which when heated was found to undergo homolytic bond cleavage to produce an 11π radical complex. Electron paramagnetic resonance (EPR), supported by density functional theory (DFT) calculations, was used to characterize this radical species.

中文翻译：

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叶柄及其对立体的光物理和电子性质的研究

磷脂/芳醚原料与一系列卤化物提取试剂的反应提供了它们各自的/砷配合物。对这些阳离子的紫外可见吸收和发光研究显示出有趣的发射曲线，发现它们取决于抗衡离子的选择。在磷酸试剂中添加还原剂可得到具有中心P-P键的二聚体，当加热时发现该键会发生均裂键裂解，生成11π自由基络合物。由密度泛函理论（DFT）计算支持的电子顺磁共振（EPR）用来表征这种自由基。