The change in the central aromatic nature of the exo-tridentate ligand (i.e., benzene ( TPB ) or pyridine ( TPP )) does not affect the final product if fast crystallization is used. This indicates that the selectivity achieved by the instant synthesis (kinetic control) is quite significant, as slow crystallization yields different structures.
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Experimental X-ray and DFT Structural Analyses of M<sub>12</sub>L<sub>8</sub> Poly-[<i>n</i>]-catenanes Using exo-Tridentate Ligands.
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