Crystal Structure of the Salen Cobalt(III) Azido Complex Na[Co(salen)(N₃)₂]

Abstract

The cobalt(III) azido complex, Na[Co(salen)(N₃)₂], contains a Co(III) cation in a distorted octahedral coordination. The equatorial plane of the octahedron is defined by two N and two O atoms from the tetradentate salen ligand, and the axial ligands belong to two terminal N atoms from two different azide anions. Via interactions between the Na⁺ cations and the N and O atoms of the ligands, the [Co(salen)(N₃)₂]^- anions are connected into a polymeric structure, forming corrugated ribbons parallel to [100].