Highly phosphorescent organopalladium(ii) complexes with metal-metal-to-ligand charge-transfer excited states in fluid solutions

Jinqiang Lin; Chao Zou; Xiaobao Zhang; Qin Gao; Sa Suo; Qihang Zhuo; Xiaoyong Chang; Mo Xie; Wei Lu

doi:10.1039/c9dt02525a

Highly phosphorescent organopalladium(ii) complexes with metal-metal-to-ligand charge-transfer excited states in fluid solutions

Dalton Trans. 2019 Jul 16;48(28):10417-10421. doi: 10.1039/c9dt02525a.

Authors

Jinqiang Lin¹, Chao Zou¹, Xiaobao Zhang¹, Qin Gao¹, Sa Suo¹, Qihang Zhuo¹, Xiaoyong Chang¹, Mo Xie¹, Wei Lu¹

Affiliation

¹ Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China. luw@sustech.edu.cn.

PMID: 31241101
DOI: 10.1039/c9dt02525a

Abstract

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.