Molecular tweezers were synthesised by using a microwave accelerated alkene plus cyclobutane epoxide reaction between norbornyl appended porphyrin moieties and a diepoxide functionalised phenyl diimide spacer. The tweezers contain several rotational degrees of freedom; about the porphyrin with respect to the norbornyl linker, and between the two norbornyl backbone sections. The ability of ZnII metallated tweezer 1 to complex 1,4-diazabicyclo[2.2.2]octane (DABCO) was studied by UV/Vis and 1H NMR spectroscopy and multivariate global spectral analysis. The system was found to form a strong 1:1 intramolecular complex (1:DABCO) with an association constant of K11 = 8.1 × 107 M-1, transforming to a 1:2 open complex [1:(DABCO)2] with K12 = 2.7 × 109 M -2 at high concentrations of DABCO. Usually molecular tweezers possess a high degree of preorganisation, but we have found that the introduction of several rotational degrees of freedom has little impact on association constant strength.