Synthesis and Characterization of Heteroleptic Copper(I) and Silver(I) Complexes with Fluorinated Bipyridine and Phenanthroline Ligands
Event Type
Research Presentation
Academic Department
Chemistry
Location
Dana Science Building, 2nd floor
Start Date
24-4-2026 1:00 PM
End Date
24-4-2026 2:30 PM
Description
Organic light emitting diodes (OLED) have shown significant promise as cost effective alternatives to their inorganic counterparts. Within the OLED field, there is currently an effort to replace iridium(III) sensitizers with cheaper and more earth abundant copper(I) and silver(I) alternatives. One issue that needs to be overcome is the pseudo Jahn-Teller distortion in copper(I) complexes, a major quenching pathway. In homoleptic complexes, it has been shown that sterically bulky ligands can be utilized to control Jahn-Teller distortion, resulting in longer emission lifetimes and higher quantum yields. This work aims to use Heteroleptic copper(I) and silver(I) complexes that contain strongly electron-withdrawing and sterically bulky trifluoromethyl groups as a way to tune the fluorescence of the complexes. Preliminary characterization of these compounds was completed with mass spectrometry and single crystal X-ray crystallography (SC-XRD). Heteroleptic structures for several compounds have been confirmed with SC-XRD, while others are still in progress. Additionally, the absorbance and fluorescence properties of the compounds were studied as films and in dichloromethane solutions.
Synthesis and Characterization of Heteroleptic Copper(I) and Silver(I) Complexes with Fluorinated Bipyridine and Phenanthroline Ligands
Dana Science Building, 2nd floor
Organic light emitting diodes (OLED) have shown significant promise as cost effective alternatives to their inorganic counterparts. Within the OLED field, there is currently an effort to replace iridium(III) sensitizers with cheaper and more earth abundant copper(I) and silver(I) alternatives. One issue that needs to be overcome is the pseudo Jahn-Teller distortion in copper(I) complexes, a major quenching pathway. In homoleptic complexes, it has been shown that sterically bulky ligands can be utilized to control Jahn-Teller distortion, resulting in longer emission lifetimes and higher quantum yields. This work aims to use Heteroleptic copper(I) and silver(I) complexes that contain strongly electron-withdrawing and sterically bulky trifluoromethyl groups as a way to tune the fluorescence of the complexes. Preliminary characterization of these compounds was completed with mass spectrometry and single crystal X-ray crystallography (SC-XRD). Heteroleptic structures for several compounds have been confirmed with SC-XRD, while others are still in progress. Additionally, the absorbance and fluorescence properties of the compounds were studied as films and in dichloromethane solutions.
Comments
Under the direction of Dr. Brian Reeves.