Fig. 2. Crystal structures of Zn4L6 tetrahedra (a) N6 and (b) P6. Yellow lines connect ZnII centres to highlight the tetrahedral frameworks. (c) Comparison of the two diamine residues, highlighting their similar lengths. Hydrogen atoms, disorder, solvent molecules and anions are omitted for clarity. Zn = yellow, C = grey, H = white, N = blue, O = red.
