Remarkable Effects Of External Magnetic Field On Circularly Polarized Luminescence Of Eu-Iii(Hfa)(3) With Phosphine Chirality

Herein, magnetic circularly polarized luminescence (CPL) (MCPL) spectroscopy was conducted to analyze an Eu-III(hfa)(3) complex with three chiral P-III-ligands. Resultantly, (R)-chirality luminophores with S-up orientation and (S)-chirality luminophores with N-up orientation were observed to possess symmetrical mirror image spectra, i. e., they were enantiomers. Similarly, the (R)-chirality luminophores with N-up orientation and the (S)-chirality luminophores with S-up orientation were also enantiomers. Contrarily, (R)-S-up and (S)-S-up were diastereomers and did not possess a mirror-image relationship. Likewise, (R)-N-up and (S)-N-up were diastereomers. The J-dependency of g(MCPL) and g(CPL) datasets suggested that the N-up/S-up external magnetic field, with the aid of chiral P-III-ligands, increased the g(MCPL) values by two-to sixteen-fold and modulated the g(MCPL) signs at J=1-4. Additionally, the origins of the nonideal mirror-symmetric CPL and MCPL spectral characteristics of Eu-III(hfa)(3) with three chiral P-III-ligands were discussed in terms of parity (space-inversion, P)-symmetry, time-reversal (T)-symmetry, and PT-symmetry laws.