[{"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 [N]1=CN=NC=1, [O-]C(=O)C(=O)[O-], nodes [Zn], topology \n composition: Zn4 H8 C12 N12 O8\n"}, {"from": "gpt", "value": " 0.720706418\n"}]