NCCNCc1cc(CNCCN)[nH]n1 mol38034 0_1 NCCNCc1cc(C[NH2+]CCN)n[nH]1 mol38034 1_1 NCCNCc1cc(CNCC[NH3+])[nH]n1 mol38034 1_2 NCCNCc1cc(CNCCN)[nH+][nH]1 mol38034 1_3 NCCNCc1cc(CNCC[NH3+])n[nH]1 mol38034 1_4 NCCNCc1cc(C[NH2+]CCN)[nH]n1 mol38034 1_5