Fig. 3: Single crystal X-ray diffraction structures of macrocycles (1, 2, and 3).
From: Thermally-induced atropisomerism promotes metal-organic cage construction
The associated angle between the P and B moieties and the cavity of 1 (a), 2 (b), and 3 (c) hydrogen atoms and solvent molecules are omitted for clarity. The yellowish green plane is the molecular symmetry plane. a uses the geometric mathematics technique of parallel lines to illustrate the angle between two P groups (dashed line L1 is parallel to dashed line L2). Carbon: silvery gray, Nitrogen: bluish violet.
