Deciphering intersystem crossing and energy transfer mechanisms in a nonacoordinated ternary europium(iii) complex: a combined spectroscopic and theoretical study.

ABSTRACT: A monochromatic red emitting nonacoordinate organoeuropium complex with the formula [Eu(hfaa)₃(Ph-TerPyr)] (Eu-1) incorporating hexafluoroacetylacetone (hfaa) primary ligands and a tridentate 4'-phenyl-2,2':6',2''-terpyridine (Ph-TerPyr) ancillary ligand has been synthesized. The complex was characterized by analytical and spectroscopic methods, and its structure was established by single crystal X-ray diffraction (SC-XRD) analysis at low temperature, which explicitly confirms that the coordination sphere is composed of a EuO₆N₃ core. Under the UV excitation, Eu-1 displayed typical red emission in solution with a long-excited state lifetime (τ _obs = 1048.06 ± 9.39 μs) with a good photoluminescence quantum yield (Q ^L

SUBMITTER: Al-Sharji H 

PROVIDER: S-EPMC11474895 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature