CNCCN(C)CCN mol13522 0_1 CNCCN(C)CC[NH3+] mol13522 1_1 CNCC[NH+](C)CCN mol13522 1_2 C[NH2+]CCN(C)CCN mol13522 1_3 C[NH2+]CC[NH+](C)CCN mol13522 2_1 CNCC[NH+](C)CC[NH3+] mol13522 2_2 C[NH2+]CCN(C)CC[NH3+] mol13522 2_3 C[NH2+]CC[NH+](C)CC[NH3+] mol13522 3_1