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New publication of COSM team : “A Different Approach: Highly Encapsulating Macrocycles Being Used as Organic Tectons in the Building of CPs”

Agustín Esteban-Muriel, Carlos J. Laglera-Gándara, Marta Mato-Iglesias, Raphaël Tripier, Maryline Beyler, Andrés de Blas and Teresa Rodríguez-Blasa

DOI: https://doi.org/10.1039/D0CE01499K

For the first time, an azamacrocycle has been used to build Pb(II) 1D coordination polymers. Cross-bridged cyclam H2cb-teapa, that has a strong proton sponge behaviour, adopts a zwitterionic form and therefore acts as the external bridge rather than coordinating Pb(II) in an endocyclic way. The resulting 1D coordination polymer of formula {[Pb(Cl)(H2cb-teapa)]ClO4}n has been analysed by single crystal X-ray diffraction. Interestingly, the polymer adopts a singular tube-like structure, which results from the alternation of the L and D enantiomers generated by the layout of the arms of the organic linker.