Is the unexpected behaviour of the resolved K3[CrIII(C2O4)3] in aqueous solution responsible for the formation of pure chiral solid phase of a two-dimensional (2D) [MnIICrIII(C2O4)3 NEt(n-Pr)(n-Bu)(n-C5H11)] network?

Racemic and resolved [Cr^III(C₂O₄)₃]K₃ dissolved in water were investigated by IR spectroscopy. Compared to the racemic compound, the spectrum of the resolved one exhibits additional peaks, which have a complex temporal evolution. These peaks are attributed to water molecules coordinated to the metal ion and tentatively related to the formation of a pure chiral solid phase of two-dimensional (2D) oxalate-based Mn–Cr networks starting from partially resolved Cr^III(C₂O₄)₃]³⁻.