Inter-Ligand Energy Transfer and Related Emission Change in the Cyclometalated Heteroleptic Iridium Complex: Facile and Efficient Color Tuning over the Whole Visible Range by the Ancillary Ligand Structure
Light
Molecular Structure
Photochemistry
Color
Iridium
Ligands
01 natural sciences
7. Clean energy
0104 chemical sciences
Spectrometry, Fluorescence
Models, Chemical
Organometallic Compounds
Thermodynamics
DOI:
10.1021/ja052880t
Publication Date:
2005-09-07T04:54:04Z
AUTHORS (2)
ABSTRACT
We report a novel color tuning methodology in the electrophosphorescent iridium complex by substituting one cyclometalating ligand to an ancillary ligand as an emitting center. Highly efficient exothermic inter-ligand energy transfer (ILET) from the MLCT3 state produced between iridium and cyclometalating 2-(2,4-difluorophenyl)pyridine to LX3 state of the ancillary ligand offers a chance to access a wider range of color from sky blue (478 nm) to red (666 nm). Characteristic shapes of photoluminescence spectra, strong solvatochromic phenomena as well as DFT calculations gave evidences for this exothermic ILET.
SUPPLEMENTAL MATERIAL
Coming soon ....
REFERENCES (14)
CITATIONS (447)
EXTERNAL LINKS
PlumX Metrics
RECOMMENDATIONS
FAIR ASSESSMENT
Coming soon ....
JUPYTER LAB
Coming soon ....