Abstract
AbstractThe ligand 1, based on the [1,1,1,1]cyclophane skeleton and bearing two pyridine units as monodentate coordination sites on the same face of the backbone, leads, in the presence of ZnX2 (X = Cl, Br or I) complexes, to three isostructural neutral metallamacrocycles with an M/L ratio of 2:2. All three binuclear complexes have been characterised in the solid state by single‐crystal X‐ray diffraction. All three metallamacrocycles possess a roof‐shaped geometry affording a pocket with a single opening. The latter is occupied by solvent molecules in the solid state. A correlation between the size of the halide and dimensions of the pocket is described. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)
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