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 (D 2d )), whereas in CHCl 3 solution, the exciton CD and 19 F NMR spectra showed a novel chiral A-SAPR-8 (C 4 ) configuration which is stereospecifically formed by a trapped Na + ion with Na + ...FC (fluorocarbon) interactions.