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9,9′-Spirobifluorene based zinc coordination polymers: a study on linker geometry and topology

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Abstract

We report four Zn-based coordination polymers (CPs), synthesized from three spirobifluorene (SBF) tetracarboxylate ligands, possessing different topologies and dimensionalities. Zn-SBF-1, Zn-SBF-2 and Zn-SBF-3 CPs have 2D crystal structures with an sql topology built from square planar ligands (L1 and L3) and paddle-wheels for Zn-SBF-1 or original dimers of zinc for Zn-SBF-2 and Zn-SBF-3. Zn-SBF-4 is built from a ligand with a distorted tetrahedral geometry (L2) and an inorganic octahedral building unit resulting in a non-interpenetrated 3D porous framework with a toc topology. Structural relationships evidence that the meta (L2) versus para (L1 and L3) position of the carboxylic functions on the benzoate group of the SBF ligand increases the connectivity of the inorganic building unit and then the dimensionality of the framework.

Graphical abstract: 9,9′-Spirobifluorene based zinc coordination polymers: a study on linker geometry and topology

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Publication details

The article was received on 04 Oct 2019, accepted on 18 Nov 2019 and first published on 20 Nov 2019


Article type: Paper
DOI: 10.1039/C9CE01567A
CrystEngComm, 2020, Advance Article

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    9,9′-Spirobifluorene based zinc coordination polymers: a study on linker geometry and topology

    F. Moreau, N. Audebrand and C. Poriel, CrystEngComm, 2020, Advance Article , DOI: 10.1039/C9CE01567A

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