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Journal Articles CrystEngComm Year : 2020

A different approach: highly encapsulating macrocycles being used as organic tectons in the building of CPs

Abstract

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  and  enantiomers generated by the layout of the arms of the organic linker.
Pour la première fois, un azamacrocycle a été utilisé pour construire des polymères de coordination 1D du Pb(II). Le cyclam renforcé H2cb-teapa, qui a fort caractère d’éponge à protons, adopte une forme zwitterionique qui lui permet de jouer le rôle de pont externe plutôt que de complexer le Pb(II) de manière endocyclique. Le polymère de coordination 1D de formule {[Pb(Cl)(H2cb-teapa)]ClO4}n a été analysé par diffraction des rayons X. Le polymère adopte une structure tubulaire qui résulte de l’alternance des énantiomères  et  générés par la disposition des bras de l’espaceur organique H2cb-teapa.
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Dates and versions

hal-03053378 , version 1 (11-12-2020)

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Agustín Esteban-Muriel, Carlos Laglera-Gándara, Marta Mato-Iglesias, Raphaël Tripier, Maryline Beyler, et al.. A different approach: highly encapsulating macrocycles being used as organic tectons in the building of CPs. CrystEngComm, 2020, ⟨10.1039/D0CE01499K⟩. ⟨hal-03053378⟩
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