Two cationic heteroleptic four-coordinate Cu(I) complexes were successfully synthesized and characterized by 1H NMR, 13C NMR, 31P 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.

中文翻译：

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两种新型Cu(I)配合物的合成、结构和光物理性质

成功合成并表征了两种阳离子杂配四配位 Cu(I) 配合物1核磁共振氢谱,13核磁共振氢谱,31P NMR 光谱和质谱。配合物的晶体结构已通过单晶X射线衍射确定。这些配合物的紫外/可见吸收光谱显示以配体为中心π-π* 和电荷转移跃迁。在固态下，配合物表现出强烈的发射，具有微秒级的寿命和室温下相对较高的效率。光物理行为时间= 298 和 77 K 表明这些配合物的发射是热激活延迟荧光与磷光的混合。