Novel Configurational Structures of Sodium Tetrakis(3-heptafluorobutylryl-(+)-camphorato) Ln(III) Complexes with a Trapped Na⁺ by Na⁺···FC Interactions in the Solid State and in Solution

For newly prepared sodium tetrakis(3-heptafluorobutylryl-(+)-camphorato) Ln(III) complexes, the X-ray crystal analysis revealed an unprecedented pseudo-achiral dodecahedron (DD-8 (D2d)), whereas in CHCl3 solution, the exciton CD and 19F NMR spectra showed a novel chiral Δ-SAPR-8 (C4) configuration which is stereospecifically formed by a trapped Na+ ion with Na+···FC (fluorocarbon) interactions.