Rare earth thiocyanate complexes with 18-crown-6 co-ligands

Reaction of [Ln(NCS)3(THF)4]2 or [Yb(NCS)3(THF)4] with 18-crown-6 yields the moisture-stable [Ln(NCS)3(18-crown-6)] (Ln = La, Nd, Dy, Yb) complexes. Although the Ln contraction does not affect the coordination number, the crown ether is decreasingly folded with decreasing ion size.

Graphical abstractReaction of [Ln(NCS)3(THF)4]2 or [Yb(NCS)3(THF)4] with 18-crown-6 yields the moisture-stable [Ln(NCS)3(18-crown-6)] (Ln = La, Nd, Dy, Yb) complexes.Figure optionsDownload full-size imageDownload as PowerPoint slide