[{"from": "human", "value": "What is the gravimetric heat capacity at 300 K for MOF with MOF structural features and topology and composition? ->  MOF structural features and topology: linker [O-]C(=O)c1cnccc1C(=O)[O-], nodes [Ni][OH2][Ni], topology kgd,\n composition: Ni4 H16 C28 N4 O18\n"}, {"from": "gpt", "value": " 0.813947367\n"}]