[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is an imidazolium ion obtained by methylation at position 3 of 1-methyl-2-[(2-oxopropyl)thio]imidazole."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][C][S][C][=N+1][Branch1][#Branch1][C][=C][N][Ring1][Branch1][C][C]"}]