Patent ID: 7498446
Filing Date: 2009-03-03
Classification: C07F

Abstract:
1. A method of preparing metal complexes of the formula (Cat) + z [M ++ (5-nitro-1H-tetrazolato-N2) − x (H 2 O) y ] where x is 3 or 4, y is 2 or 3, x+y is 6, z is 1 or 2, and M ++ is selected from the group consisting of iron, cobalt, nickel, copper, zinc, chromium, and manganese, and (Cat) + is selected from the group consisting of ammonium, sodium, potassium, rubidium and cesium comprising: admixing a metal hexaaqua salt and a salt of 5-nitrotetrazole selected from among ammonium, sodium, potassium, rubidium and cesium salts of 5-nitrotetrazole in a suitable solvent; and, heating said admixture at temperatures and for time sufficient to form said metal complexes of the formula (Cat)