[{"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]1C=NN=C1, nodes [Cu], topology lim,\n composition: Cu4 H8 C8 N12\n"}, {"from": "gpt", "value": " 0.676886037\n"}]