Bis[μ-N'-(2-methyl-1-oxidopropanyl-idene)-2-oxidobenzohydrazidato]tetra-pyridine-trinickel(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 mol-ecules 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-methyl-propano-yl)salicyloylhydrazidate anions in an elongated octa-hedral coordination geometry. The terminal Ni atom is coordinated by a pyridine ligand and is further N,N',O-chelated by an N-(2-methyl-propano-yl)salicyloyl-hydrazidate anion in a distorted square-planar coordination geometry. Weak intra-molecular C-H⋯O hydrogen bonding is observed in the structure.