Centrosymmetric molecular structures in the solid state of 4 -Trip as determined by X-ray crystallography. The thermal ellipsoids are set at the 30% level. Hydrogen atoms, second disorder component and solvate molecule omitted and selected fragments are shown in the wireframe format for clarity. Selected bond lengths for 4 -Trip are: Ca–F 2.143(1), K···F 2.526(2) and 2.532(1) A.
