[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][N][Branch2][Ring2][Branch2][C][C][N][Branch2][Ring1][#Branch1][C][C][N][Branch1][N][C][C][N][Ring1][N][C][C][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O-1][C@@H1][Branch1][Ring1][C][O][C@H1][Branch1][Ring1][C][O][O][C][C][=Branch1][C][=O][O-1].[Gd+3]"}, {"from": "gpt", "value": "The molecule is a gadolinium coordination entity consisting of a central Gd(III) atom bound to a macrocyclic tetraamine framework. It is used as a paramagnetic contrast agent in magnetic resonance imaging (MRI). It has a role as a MRI contrast agent."}]