With chemical co-precipitation, trimetal Prussian blue analogue Cu 0.71 Mn 0.79 [Fe(CN) 6 ]·7.3H 2 O was obtained. We used supercritical carbon dioxide extraction apparatus to pressurize the samples for 10 MPa, 20 MPa, and 42 MPa for 5 h. X-ray powder diffraction data show the single-phase of the sample at different pressures with a NaCl-type face-centered cubic structure. Trimetal Prussian blue analogs Cu 0.71 Mn 0.79 [Fe(CN) 6 ]·7.3H 2 O include both ferromagnetic and antiferromagnetic exchange interactions among different metal ions and ex...
