Bis[μ-N′-(2-methyl-1-oxidopropanyl­idene)-2-oxidobenzohydrazidato]tetra­pyridine­trinickel(II)

The asymmetric unit of the title trinuclear Ni(II) compound, [Ni(3)(C(11)H(11)N(2)O(3))(C(5)H(5)N)(4)], contains two independent mol­ecules which are located on individual inversion centres. The central Ni atom, located on an inversion centre, is coordinated by two pyridine N atoms and is further N,O-chelated by two N-(2-methyl­propano­yl)salicyloylhydrazidate anions in an elongated octa­hedral coordination geometry. The terminal Ni atom is coordinated by a pyridine ligand and is further N,N′,O-chelated by an N-(2-methyl­propano­yl)salicyloyl­hydrazidate anion in a distorted square-planar coordination geometry. Weak intra­molecular C—H⋯O hydrogen bonding is observed in the structure.