Bis(μ₂-2,2′-((2-(hydroxy)propane-1,3-diyl)bis((nitrilo)eth-1-yl-1-ylidene))diphenolato)-dicobalt(III)

Abstract

A new cobalt(III) complex with a pentadentate Schiff base was synthesized using a reaction of 2,2′-{(2-hydroxypropane-1,3-diyl)bis(nitriloeth-1-yl-1-ylidene)}diphenol (H3L) and cobalt(II) acetate in a methanolic solution. This synthesis resulted in the isolation of dinuclear compound [CoIII2L2] (1), which was characterized using elemental analyses and XRF, FTIR, and TG/DSC techniques. The molecular structure of the complex was confirmed using single-crystal X-ray diffraction. The structure of 1 consists of a centrosymmetric dimer in which two crystallographically equivalent cobalt(III) ions are bridged by two alkoxido oxygen atoms. In addition, each metal center is coordinated by two Schiff bases.

Keywords

• pentadentate chelating ligand
• cobalt(III) complex
• Schiff base
• X-ray crystallography
• thermal analysis