Abstract
A series of emissive Cu(I) cationic complexes with 3-(2-pyridyl)-5-phenyl-pyrazole and various phosphines: dppbz (1), Xantphos (2), DPEPhos (3), PPh3 (4), and BINAP (5) were designed and characterized. Complexes obtained exhibit bright yellow-green emission (ca. 520–650 nm) in the solid state with a wide range of QYs (1–78%) and lifetimes (19–119 µs) at 298 K. The photoluminescence efficiency dramatically depends on the phosphine ligand type. The theoretical calculations of buried volumes and excited states explained the emission behavior for 1–5 as well as their lifetimes. The bulky and rigid phosphines promote emission efficiency through the stabilization of singlet and triplet excited states.
Highlights
Nitrogen-containing ligands play an important role in the coordination chemistry of group 11 metals
Collins et al have demonstrated that the cationic copper(I) complex with nonworks were published on the study of the photophysical properties of both neutral and deprotonated pyrazole-pyridine with sulfonamide substituent is a bifunctional catalyst for cationic complexes with pyridine-amines (pyrazole, triazole, tetrazole, benzimidazole, proton-coupled electron transfer (PCET) processes [39]
Our study has shown that, that for high QY of MLCT phosphorescence, one requires bulk loading of the metal atom, which could be effectively achieved by changing phosphine from DPEPhos to Xantphos
Summary
Nitrogen-containing ligands play an important role in the coordination chemistry of group 11 metals. The photophysical ilarbehavior trinuclear complexes possess efficient, long-lived photoluminescence due to MLCTare of copper(I) complexes with pyridine-pyrazole/triazole/tetrazole ligands (metal-to-ligand charge-transfer) transitions of the high-lying. MLCT published on the study of the photophysical properties of both neutral and cationic com(metal-to-ligand charge-transfer) transitions of the high-lying ISC (intersystem crossing) plexes with pyridine-amines (pyrazole, triazole, tetrazole, benzimidazole, etc.) [28]. Collins et al have demonstrated that the cationic copper(I) complex with nonworks were published on the study of the photophysical properties of both neutral and deprotonated pyrazole-pyridine with sulfonamide substituent is a bifunctional catalyst for cationic complexes with pyridine-amines (pyrazole, triazole, tetrazole, benzimidazole, proton-coupled electron transfer (PCET) processes [39]. Copper complexes with 2-(5-phenyl-1H-pyrazol-3-yl)pyridine and phosphines: dppbz (1), Xantphos (2), DPEPhos (3), PPh3 (4), and
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
