Metallo-complexes ligand array

Tetracarboxjdetraphenylporphyrin has been employed as another ligand [137]. The Zn-complex of this porphyrin was treated with 4,4 -bipyridine in a mixture of methanol and ethyl benzoate to give crystals of 52. Figure 7-13 shows interlinked arrays of the porphyrin and bipyridyl. The structure represents an open three-dimensional network in which the individual metallo-porphyrin units are cross-linked both axially and equatorially. 

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