NCCNCCNCCN mol3111 0_1 NCCNCCNCC[NH3+] mol3111 1_1 NCCNCC[NH2+]CCN mol3111 1_2 [NH3+]CCNCCNCC[NH3+] mol3111 2_1 NCCNCC[NH2+]CC[NH3+] mol3111 2_2 NCC[NH2+]CCNCC[NH3+] mol3111 2_3 NCC[NH2+]CC[NH2+]CCN mol3111 2_4 [NH3+]CCNCC[NH2+]CC[NH3+] mol3111 3_1 NCC[NH2+]CC[NH2+]CC[NH3+] mol3111 3_2 [NH3+]CC[NH2+]CC[NH2+]CC[NH3+] mol3111 4_1