Crystal Structure And Hirshfeld Surface Analysis Of Di­Aqua­Bis­(N,N-Di­Ethyl­Nicotinamide-Κn 1)Bis­(2,4,6-Tri­Methyl­Benzoato-Κo)Manganese(Ii)

Abstract

The MnII complex is centrosymmetric and the mol­ecules are linked by O—H⋯O and C—H⋯O hydrogen bonds into the three-dimensional supra­molecular network., In the title centrosymmetric complex, [Mn(C10H11O2)2(C10H14N2O)2(H2O)2], the MnII cation is located on an inversion centre. The four O atoms form a slightly distorted square-planar arrangement around the MnII cation, and the distorted octa­hedral coordination is completed by two pyridine N atoms at distances of 2.3289 (15) Å. The dihedral angle between the planar carboxyl­ate group and the adjacent benzene ring is 87.73 (16)°, while the benzene and pyridine rings are oriented at a dihedral angle of 43.03 (8)°. In the crystal, the water mol­ecules are involved in both intra­molecular (to the non-coordinating carboxyl­ate O atom) and inter­molecular (to the amide carbonyl O atom) O—H⋯O hydrogen bonds. The latter lead to the formation of layers parallel to (100). These layers are further linked via weak C—H⋯O hydrogen bonds, resulting in a three-dimensional supra­molecular network. The Hirshfeld surface analysis of the crystal structure indicates that the most important contributions for the crystal packing are from H⋯H (70.0%), H⋯O/O⋯H (15.5%) and H⋯C/C⋯H (14.0%) inter­actions. One of the ethyl groups of the di­ethyl­nicotinamide ligand is disordered over two sets of sites, with an occupancy ratio of 0.282 (10):0.718 (10).