Abstract
In the crystal structure of the title compound, (C5H6ClN2)[Cr(C2O4)(2)(H2O) (2)]center dot 1.5H(2)O, the Cr-III atom adopts a distorted octahedral geometry being coordinated by two O atoms of two cis water molecules and four O atoms from two chelating oxalate dianions. The cis-diaquadioxalatochromate(III) anions, 2-amino-5-chloropyridinium cations and uncoordinated water molecules are linked into a three-dimensional supramolecular array by O-H center dot center dot center dot O and N-H center dot center dot center dot O hydrogenbonding interactions. One of the two independent lattice water molecules is situated on a twofold rotation axis.