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Article Dans Une Revue Chemical Communications Année : 2020

Structure-directing role of immobilized polyoxometalates in the synthesis of porphyrinic Zr-based metal–organic frameworks

Pierre Mialane
Mohamed Haouas
Anne Dolbecq

Résumé

We evidence the structure-directing role of the PW12O403-polyoxometalate in the synthesis of porphyrinicMOFswhereby it promotes the formation of the kinetic topology. Its immobilization into the MOF is successfully achieved at high temperature yielding the kinetic MOF-525/PCN-224 phases, while prohibiting the formation of the thermodynamic MOF-545 product. A combined experimental and theoretical approach uses differential PDF and DFT calculations along with solid-state NMRto show the structural integrity of the hosted POM andits location in the vicinity of the Zr-based nodes.

Domaines

Chimie
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Dates et versions

hal-02945355 , version 1 (28-09-2020)

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Mathis Duguet, Alex Lemarchand, Youven Benseghir, Pierre Mialane, Maria Gomez-Mingot, et al.. Structure-directing role of immobilized polyoxometalates in the synthesis of porphyrinic Zr-based metal–organic frameworks. Chemical Communications, 2020, 56 (70), pp.10143-10146. ⟨10.1039/d0cc04283h⟩. ⟨hal-02945355⟩
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