两种新型Cu(I)配合物的合成、结构及光物理性质

Xiaojuan Sun, Zhiqiang Wang
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摘要

摘要成功合成了两种阳离子杂电性四配位Cu(I)配合物,并通过1h NMR、13c NMR、31p NMR谱和质谱对其进行了表征。用单晶x射线衍射测定了配合物的晶体结构。这些配合物的紫外/可见吸收光谱显示配体中心π - π *和电荷转移跃迁。在固体状态下,配合物表现出强烈的发射,具有微秒级寿命和室温下相对较高的效率。在T = 298和77 K时的光物理行为表明,这些配合物的发射是热激活的延迟荧光和磷光混合。
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Synthesis, structures and photophysical properties of two new Cu(I) complexes
Abstract Two cationic heteroleptic four-coordinate Cu(I) complexes were successfully synthesized and characterized by 1 H NMR, 13 C NMR, 31 P NMR spectroscopy and mass spectrometry. The crystal structures of the complexes have been determined by single-crystal X-ray diffraction. UV/Visible absorption spectra of these complexes show ligand-centered π - π * and charge transfer transitions. In the solid state the complexes show intense emissions with microsecond-scale lifetime and relatively high efficiency at room temperature. The photophysical behavior at T = 298 and 77 K indicates that the emissions of these complexes are thermally activated delayed fluorescence mixed with phosphorescence.
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