Journal
INORGANICA CHIMICA ACTA
Volume 384, Issue -, Pages 225-232Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2011.12.002
Keywords
Cu(I) complex; Excited state; Luminescence quenching; Electron-configuration
Categories
Funding
- NSFC [51172224, 51103145, 21041007]
- Science and Technology Developing Project of Jilin Province [20100533]
Ask authors/readers for more resources
In this paper, we report a series of [Cu(N-N)(P-P)]BF4 complexes based on two phosphorous ligands and three 1,10-phenanthrolin derived diimine ligands, including their syntheses, characterizations, crystal structures. Their photophysical properties were experimentally measured and theoretically analyzed by time-dependent density functional theory (TD-DFT). It is found that the introduction of too many fused phenyl rings into diimine ligand leads to luminescence absence of corresponding [Cu(N-N)(P-P)](+) complexes at room temperature. A detailed analysis suggests that the thermal activated electron-configuration transformation between the [Cu(N-N)(P-P)]+ triplet metal-to-ligand-charge-transfer ((MLCT)-M-3) state and the lowest lying excited state of its diimine ligand ((LC)-L-3) is responsible for the luminescence quenching. (C) 2011 Elsevier B. V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available