[{"from": "human", "value": "Tell me the gravimetric heat capacity at 300 K of given MOF with MOF structural features and topology and composition. ->  MOF structural features and topology: linker [O-]C(=O)c1cc(cc(c1)C(=O)[O-])c1cc(cc(c1)C(=O)[O-])C(=O)[O-], nodes [Ni], [O], topology \n composition: Ni4 H12 C32 O20\n"}, {"from": "gpt", "value": " 0.812693276\n"}]