1,3,5,7,9,11-Hexaaza-2,4,6,8,10,12-hexaphosphacyclododeca-1,3,5,7,9,11-hexaene,2,2,4,4,6,6,8,8,10,10,12,12-dodecahydro-2,2,4,4,6,6,8,8,10,10,12,12-dodecamethyl-