Lin Jinqiang, Zou Chao, Zhang Xiaobao, Gao Qin, Suo Sa, Zhuo Qihang, Chang Xiaoyong, Xie Mo, Lu Wei
Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
Dalton Trans. 2019 Jul 16;48(28):10417-10421. doi: 10.1039/c9dt02525a.
Dinuclear pincer-type cyclometalated Pd(ii) complexes with foldable diacetylide ligands show crystallographically determined intramolecular PdPd contacts of 3.203-3.380 Å. In deoxygenated fluid solutions, these Pd(ii) complexes are highly phosphorescent in the red region with emission quantum yields up to 48%, which has been ascribed to metal-metal-to-ligand charge-transfer (MMLCT) excited states in nature.
具有可折叠二乙炔配体的双核钳型环金属化钯（II）配合物显示出晶体学测定的分子内钯-钯接触距离为3.203 - 3.380 Å。在脱氧流体溶液中，这些钯（II）配合物在红色区域具有高度磷光性，发射量子产率高达48%，其本质上归因于金属-金属到配体的电荷转移（MMLCT）激发态。
