Can chiral P(<scp>iii</scp>) coordinate Eu(<scp>iii</scp>)? Unexpected solvent dependent circularly polarised luminescence of BINAP and Eu(<scp>iii</scp>)(hfa)₃ in chloroform and acetone

Abstract

The coordination of Eu(<sc>iii</sc>) (from Eu(<sc>iii</sc>)(hfa)₃) by chiral P(<sc>iii</sc>) (from BINAP) led to circularly polarised luminescence in dilute solutions on the order of |<italic>g</italic>_em| ≈ 10⁻² at ⁵D₀ → F₁ and |<italic>g</italic>_em| ≈ 10⁻² at ⁵D₀ → F₂ transitions, <italic>i.e.</italic>, in chloroform and acetone.