A new tetranuclear copper(II) complex with oximate bridges: Structure, magnetic properties and DFT study

► Synthesis of tetranuclear Cu(II) complex with oximate ligands. ► Rare μ3-η1,η2,η1-oximato bridges. ► It shows relatively weaker antiferromagnetic interaction through in-plane bridging of oximates. ► Magnetic exchange through out-of-plane bridging mode of oxime is negligible. ► Understanding of magnetic exchange coupling using DFT technique.