fig14
From: Chiral cage materials with tailored functionalities for enantioselective recognition and separation
Figure 14. (A) Crystal structures of ΛΛΛΛ-[Ti4L136] and the triple-stranded right-handed helical chains along the C-axis formed by 4,4’-di(1H-imidazol-1-yl)-1,1’-biphenyl (bimb) ligands and ZnII, coordination environment of the Ti4L136 cage in MOF-1(Λ) and 3D framework and simplified structure with helical chiral channels; (B) structures of four guests and results of separation experiments.
