The quinquedentate complex trans(H₂O,O⁵)-[Cr(1,3-pddap)(H₂O)] · 2H₂O (where 1,3-pddap is the 1,3-propanediamine-N,N '-diacetate-N-3-propionate ion) was prepared and its structure established by X-ray diffraction method. It crystallizes in the orthorhombic space group Pna2₁, a = 17.290(2), b = 10.821(2), c = 7.872(1) Å, Z =...