Synthesis, crystal structure and Hirshfeld surface analysis of bis[4-(2-aminoethyl)morpholineκ2N,N']diaquanickel(II) dichloride

The title coordination compound, [Ni(C6H14N2O) 2(H2O)(2)]Cl-2, was synthesized by mixing 4-(2-aminoethyl)morpholine and nickel chloride in double-distilled water. The asymmetric unit comprises one half of an NiII cation (located on an inversion centre), one 4-(2-aminoethyl)morpholine ligand, one coordinated water molecule and one chloride ion outside the metal coordination sphere. The nickel ion is in a octahedral environment of the N4O2 type, coordinating four N atoms from two 4-(2-aminoethyl)morpholine ligands and two trans-located O atoms from two water molecules. The morpholine ligand was found disordered over two positions with a site occupancy ratio of 0.708 (8):0.292 (8). The crystal structure is consolidated by N-H center dot center dot center dot Cl, N-H center dot center dot center dot O, C-H center dot center dot center dot Cl and C-H center dot center dot center dot O hydrogen bonds. Hirshfeld surface analysis confirms that van der Waals interactions are prevalent in the crystal packing of the synthesized complex.