The crystal structure of [Fe₂(PIMIC6)(AnthCO₂)(CH₃CN)]·[Fe₂(PIMIC6)(AnthCO₂)(CH₃CN)_0.9(CH₂Cl₂)_0.1]·[Fe₂(PIMIC6)(AnthCO₂)(OH₂)]·0.75CH₃CN: a crystallographer's nightmare or a fascinating case of disorder?

The detailed refinement of a large and highly disordered compound is presented. All 14 400 conformations of the compound deriving from the possible combinations of independent disorders could be modeled. To enable this, 5311 parameters had to be refined, which makes this structure one of the most complex structures in the Cambridge Structural Database to date.