Fig. 6: Crystal structure of Co-TG in CO2-saturated state.
a View from the same as Fig. 4d. b Overlayed image of the fragments in the bilayer motif of Co-TG framework, containing two crystallographic asymmetric units, with hydrogen atoms omitted. Green and pink atoms correspond to the desolvated and CO2-saturated states, respectively. Yellow ellipsoid indicates the 4,4′-bpy moiety with a smaller torsion angle. c Two 1D corrugated pores running along the b-axis. d Fused voids in the 1D corrugated channel, containing three CO2 molecules for each. e CO2 accommodated in the framework of Co-TG. Yellow-colored 4,4′-bpy moieties have smaller torsion angles, affording extra space in the pore space. f Alignment pattern of the two different 1D corrugated pores, viewed from the b-axis. One-third of all the pores are of the separated voids.
