c1cc(-c2nn[nH]n2)cc(-c2nnn[nH]2)c1 mol14486 0_1 c1cc(-c2nn[n-]n2)cc(-c2nnn[nH]2)c1 mol14486 -1_1 c1cc(-c2nn[nH]n2)cc(-c2nnn[n-]2)c1 mol14486 -1_2