N/N=C/c1ncnc2nc[nH]c12 mol12790 0_1 N/N=C/c1nc[nH+]c2nc[nH]c12 mol12790 1_1 N/N=C/c1ncnc2[nH+]c[nH]c12 mol12790 1_2 N/N=C/c1[nH+]cnc2nc[nH]c12 mol12790 1_3 [NH3+]/N=C/c1ncnc2nc[nH]c12 mol12790 1_4 N/[NH+]=C/c1ncnc2nc[nH]c12 mol12790 1_5 [NH-]/N=C/c1ncnc2nc[nH]c12 mol12790 -1_1 N/N=C/c1ncnc2nc[n-]c12 mol12790 -1_2