A Multifunctional, Charge-Neutral, Chiral Octahedral M12 L12 Cage

Stephanie A Boer; Keith F White; Benjamin Slater; Adrian J Emerson; Gregory P Knowles; William A Donald; Aaron W Thornton; Bradley P Ladewig; Toby D M Bell; Matthew R Hill; Alan L Chaffee; Brendan F Abrahams; David R Turner

doi:10.1002/chem.201901681

A Multifunctional, Charge-Neutral, Chiral Octahedral M₁₂ L₁₂ Cage

Chemistry. 2019 Jun 26;25(36):8489-8493. doi: 10.1002/chem.201901681. Epub 2019 May 27.

Authors

Affiliations

¹ School of Chemistry, Monash University, Clayton, VIC 3800, Australia.
² School of Molecular Science, La Trobe University, Wodonga, VIC 3690, Australia.
³ Barrer Centre, Department of Chemical Engineering, Imperial College London, SW7 2AZ, UK.
⁴ CSIRO, Private Bag 10, Clayton South MDC, VIC 3189, Australia.
⁵ School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia.
⁶ Institute for Micro Process Engineering, Karlsruhe Institute of Technology, 76344, Eggenstein-Leopoldshafen, Germany.
⁷ School of Chemical Engineering, Monash University, Clayton, VIC 3800, Australia.
⁸ School of Chemistry, University of Melbourne, Parkville, VIC, 3010, Australia.

PMID: 31056779
DOI: 10.1002/chem.201901681

Abstract

A chiral, octahedral M₁₂ L₁₂ cage, which is charge neutral and contains an internal void of about 2000 Å³ , is reported. The cage was synthesised as an enantiopure complex by virtue of amino-acid-based dicarboxylate ligands, which assemble around copper paddlewheels at the vertices of the octahedron. The cage persists in solution with retention of the fluorescence properties of the parent acid. The solid-state structure contains large pores both within and between the cages, and displays permanent porosity for the sorption of gases with retention of crystallinity. Initial tests show some enantioselectivity of the cage towards guests in solution.

Keywords: chirality; gas storage; metal-organic cage; self-assembly; supramolecular chemistry.

Abstract

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