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![[Figure 4]](gd3276fig4mag.jpg)
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Figure 4
An illustration of the interporphyrin ZnTPyP coordination pattern of trigonal symmetry observed in the three-dimensional supramolecular isomer of type (II), which was reported previously (Krupitsky et al., 1994  ; George & Goldberg, 2005); the projection of the crystal structure of the acetic acid clathrate is down the c axis (acetic acid molecules and H atoms have been omitted). The C3 axes are marked by solid triangles. Labelling of the molecules as A, B, C and D is related to the discussion of the supramolecular isomorphism in the Comment. The continuity of the shown framework in three dimensions is symbolized by the additional terminal ZnII ions coordinated to the pyridyl group and the N-atom sites of neighbouring species coordinated to the zinc centres. Note the roughly perpendicular mutual orientation of porphyrin cores B and C. |
![[Figure 4]](gd3276fig4.jpg)
 | STRUCTURAL CHEMISTRY |
ISSN: 2053-2296
