Synthesis, structures, and photophysical properties of two Cu(I) complexes supported by <i>N</i>-heterocyclic carbene and phosphine ligands
作者:Xinhua Lou、Yunfei Tian、Zhiqiang Wang
DOI:10.1515/znb-2022-0092
日期:2022.9.27
Two new cationic four-coordinate Cu(I) complexes supported by different chelating N-heterocyclic carbene ligands and the diphosphine ligand bis[2-(diphenylphosphino)phenyl]ether (POP) have been synthesized. The chemical structures of both complexes have been characterized by 1H NMR, 13C NMR, 31P NMR, and mass spectroscopy, and the crystal structure of one complex has been determined by single-crystal
两种不同螯合支持的新型阳离子四配位Cu(I)配合物ñ-杂环卡宾配体和二膦配体双[2-(二苯基膦基)苯基]醚(POP)已被合成。两种配合物的化学结构均由1核磁共振氢谱,13C核磁共振,31P NMR、质谱和一种配合物的晶体结构已通过单晶 X 射线衍射确定。理论计算结果表明,这些配合物的最低能量电子跃迁主要是金属-配体电荷转移和配体-配体电荷转移跃迁。固态配合物显示出具有高光致发光量子产率的强烈发射。在 298 和 77K 的光物理行为表明,这些配合物在室温下的发射是热激活的延迟荧光与磷光混合。