Synthesis and photophysical properties of chiral Cu(I) complexes

Abstract

Recently, researchers are focusing on to fabricate optoelectronic devices using cost effective and environment friendly materials. Cu(I) complexes are promising candidate and used as emitters in optoelectronic devices (OLEDs, LEECs etc), photocatalyst for organic transformations, sensing of gases and organic volatiles. Chiral emissive complexes are important due to their potential in various fields, including nonlinear optics, anti-counterfeiting, and 3D displays. This project aims to synthesize and characterize oxazoline-derived chiral ligands and their Cu(I) complexes. The present study includes the synthesis of chiral (R and S) oxazoline-based ligands (L1–L4) and characterization. L1 and L2 were prepared from 2-cyanopyridine, L3 and L4 ligands were prepared from 4-cyanopyridine. Furthermore, various complexes were formed using these ligands. These complexes were successfully characterized by NMR and SCXRD. Additionally, the photophysical and chiroptical properties of some complexes were studied using UV-Vis, photoluminescence, and circular dichroism.