O=C([O-])/C=C/c1c[nH]c[nH+]1 mol12977 0_1 O=C(O)/C=C/c1c[nH]cn1 mol12977 0_2 O=C(O)/C=C/c1c[nH]c[nH+]1 mol12977 1_1 O=C(O)/C=C/c1c[n-]cn1 mol12977 -1_1 O=C([O-])/C=C/c1c[nH]cn1 mol12977 -1_2 O=C([O-])/C=C/c1c[n-]cn1 mol12977 -2_1