Hexaaquanickel(II) chelidonate monohydrate

In the title hydrated molecular salt, [Ni(H2O)(6)](C7H2O6)center dot H2O, the Ni cation adopts a slightly distorted octahedral geometry. In the crystal structure, the component species interact by way of O-H center dot center dot center dot O and weak C-H center dot center dot center dot O interactions, resulting in a three-dimensional network.