Fig. 7. Comparison of the crystal structures of CO2-loaded MFM-305-CH3 and MFM-305 studied by synchrotron X-ray powder diffraction at variable temperatures. Dynamic structures of CO2 under different temperature (270 K, dark red; 230 K, red; 198 K, pink; 150 K, yellow; 117/100 K, bright green) in (a) MFM-305-CH3 and (d) MFM-305. (b and e) Enlarged views of the multiple CO2 regions in (a) and (d) at site I (solid symbol) and site II (patterned symbol). Occupancies of CO2 at site I and II in (c) MFM-305-CH3 and (f) MFM-305.
