[{"from": "human", "value": "Write 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([O])c(cc1[O])C(=O)[O-], nodes [Ni], topology pcu\n composition: Ni6 H6 C24 O18\n"}, {"from": "gpt", "value": " 0.713069679\n"}]