[{"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 [CH]1C=NN=N1, [N]1C=CN=N1, [O-]C(=O)c1ccc(cc1)C(=O)[O-], nodes [Zn], topology pcu\n composition: Zn3 H12 C20 N6 O8\n"}, {"from": "gpt", "value": " 0.785858042\n"}]