Synthesis and structure of macrocyclic dinickel(II) complex with 5-(4-pyridyl)tetrazolate as coligand

The dinuclear nickel(II) complex [Ni2LmClO4] + , where Lm represents a 24-membered macrocyclic hexaaza-dithiophenolate ligand, reacts with 5-(4-pyridyl)tetrazole (PyrCN4H) to give the [Ni2Lm(PyrCN4)]+ . new was both isolated as perchlorate or tetraphenylborate salts and characterised by elemental analysis IR spectroscopy. structure of [Ni2Lm(PyrCN4)]BPh4 ⋅ MeCN determined single crystal X-ray diffraction, showing that tetrazolate units are in N2,N3-bridging mode generate dioctahedral N3Ni(µ-S)2(µ-N4CPyr)NiN3 core.