A total of 44 electrons, corresponding perfectly to the observed 2 molecules of CD3CN per formula unit, was removed from a void space of 188 Å 3 in the asymmetric unit, four such voids being found in total in the unit cell, 176 electrons and 8 solvent molecules overall. The void spaces lie in a channel running along the mirror planes of the unit cell, separated by Pd-CD2CN units from different cations on either side, in the same locations that the poorly behaved solvent molecules were found in the initial refinement. The mirror plane in the middle of the unit cell bisects the molecule through the P-Pd-CD2CN unit as well as through the BF4 anion and the cocrystallized solvent molecules, making one-half of each molecule unique. No significant intermolecular interactions are observed. The BF4 ion fits in a cleft above the metal center between the phenyl group of the central phosphorus atom and the terminal C atom of the cyanomethyl group, and its position is therefore well defined, without any observable disorder.