Figure 4
(a) Crystal structure of the CPL-1 sample without guest gas molecules and (b) with the adsorption of O2 in the nanopore. The space group of both crystal structures is P21/c. The O2 pressure dependence of (c) the XRPD patterns at 77 K and (d) time are also shown. The XRPD data were recorded by the double-step mode of MYTHEN detectors. |