[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is an ammonium ion resulting from the addition of a proton to the piperazine nitrogen that is not attached to the pyrimidinyl group. The major species at pH 7.3. It is a conjugate acid of a buspirone."}, {"from": "gpt", "value": "[C][C][C][C][Branch1][Ring2][C][Ring1][Branch1][C][C][=Branch1][C][=O][N][Branch1][Branch2][C][=Branch1][C][=O][C][Ring1][=Branch2][C][C][C][C][NH1+1][C][C][N][Branch1][Branch1][C][C][Ring1][=Branch1][C][=N][C][=C][C][=N][Ring1][=Branch1]"}]