Synthesis, crystal structure and Hirshfeld surface analysis of bis-[4-(2-amino-eth-yl)morpholine-κ 2 N , N ']di-aqua-nickel(II) dichloride.

The title coordination compound, [Ni(C ₆ H ₁₄ N ₂ O) ₂ (H ₂ O) ₂ ]Cl ₂ , was synthesized by mixing 4-(2-amino-eth-yl)morpholine and nickel chloride in double-distilled water. The asymmetric unit comprises one half of an Ni ^II cation (located on an inversion centre), one 4-(2-amino-eth-yl)morpholine ligand, one coordinated water mol-ecule and one chloride ion outside the metal coordination sphere. The nickel ion is in a octa-hedral environment of the N ₄ O ₂ type, coordinating four N atoms from two 4-(2-amino-eth-yl)morpholine ligands and two trans -located O atoms from two water mol-ecules. 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⋯Cl, N-H⋯O, C-H⋯Cl and C-H⋯O hydrogen bonds. Hirshfeld surface analysis confirms that van der Waals inter-actions are prevalent in the crystal packing of the synthesized complex.
(© Chidambaranathan et al. 2023.)