Metal complexes with 5-aminotetrazole

Nitrate and chloride complexes of Co(2), Ni(2), Cu(2), Cd(2), Hg(2), Pb(2) with 5 aminotetrazole (ATE) and compoUnds Zn(ATE')2 and Cd(ATEE')2, where ATE' is a 5 aminotetrazole ano /nion. On the base of spectroscopic data (spectrophotometry, IR- spectra, EPR and magnetic measurements assumptions on M(2) coordination in complexes are made. Most probably ATE is a bridge ligand which is joined by two nitrogen atoms to various M(2) ions. In Co(2), Ni(2) and Cu(ATE)3-Cl2 compounds the metal has a distorted actahedral coordination and forms MN6 unit, which suggests the interaction of metal ions with ATE nitrogen atoms along the Z-axis. In the Cu(ATE)2(NO3)2 octahedral complex the CuN4O2 coordination unit is realized at the expense of participation of nitratogroups in coordination