NCCc1nc(I)[nH]c1I mol6635 0_1 NCCc1[nH+]c(I)[nH]c1I mol6635 1_1 [NH3+]CCc1nc(I)[nH]c1I mol6635 1_2 [NH3+]CCc1[nH+]c(I)[nH]c1I mol6635 2_1 NCCc1nc(I)[n-]c1I mol6635 -1_1