[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a 7,8-diaminononanoate cation. It is a conjugate base of a (7R,8S)-7,8-diaminononanoic acid."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][#C][C@@H1][Branch1][O][C][C][C][C][C][C][=Branch1][C][=O][O-1][NH3+1][NH3+1]"}]