Mimicking biological cation-transport based on sphere-surface supramolecular chemistry: Simultaneous interaction of porous capsules with molecular plugs and passing cations

Merca A, Haupt ETK, Mitra T, Bögge H, Rehder D, Müller A (2007)
Chemistry - a European Journal 13(27): 7650-7658.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
Spherical capsules of the type [{(Mo)Mo-5}(12)[Mo-2(ligand)}(30)](n-) exhibiting 20 {Mo9O9} pores with crown ether functions allowed us to perform a sophisticated study of the title phenomenon based on synthetic work as well as NMR spectroscopy. The pores of the host system interact in solution specifically with guests that can be noncovalently bonded, such as formamidinium and acetamidinium cations, while having different affinities to the pores. The exchange between the guest species present in solution and in the pores was investigated, including, besides the extreme scenarios of complete pore closing and complete opening, that of stepwise pore plugging. Because of this option it was possible to model for the first time passive transmembrane cation transport based on gated pores/channels. These have the appropriate dimensions and can even adopt different structure flexibilities in response to different cations. The present investigation is based on related syntheses as well as on numerous detailed Li-7 NMR studies of Li+ transport/exchange equilibria in dependence of the pore environment/guest situations. One compound containing capsules with sulfate ligands (2) could be obtained in which all the pores are plugged with formamidinium cations and another corresponding one was obtained with additionally encapsulated Ca2+ ions (3); these were taken up after temporary release of some of the formamidinium plugs/guests upon short heating of the related solution.
Erscheinungsjahr
Zeitschriftentitel
Chemistry - a European Journal
Band
13
Zeitschriftennummer
27
Seite
7650-7658
ISSN
eISSN
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Merca A, Haupt ETK, Mitra T, Bögge H, Rehder D, Müller A. Mimicking biological cation-transport based on sphere-surface supramolecular chemistry: Simultaneous interaction of porous capsules with molecular plugs and passing cations. Chemistry - a European Journal. 2007;13(27):7650-7658.
Merca, A., Haupt, E. T. K., Mitra, T., Bögge, H., Rehder, D., & Müller, A. (2007). Mimicking biological cation-transport based on sphere-surface supramolecular chemistry: Simultaneous interaction of porous capsules with molecular plugs and passing cations. Chemistry - a European Journal, 13(27), 7650-7658. doi:10.1002/chem.200700294
Merca, A., Haupt, E. T. K., Mitra, T., Bögge, H., Rehder, D., and Müller, A. (2007). Mimicking biological cation-transport based on sphere-surface supramolecular chemistry: Simultaneous interaction of porous capsules with molecular plugs and passing cations. Chemistry - a European Journal 13, 7650-7658.
Merca, A., et al., 2007. Mimicking biological cation-transport based on sphere-surface supramolecular chemistry: Simultaneous interaction of porous capsules with molecular plugs and passing cations. Chemistry - a European Journal, 13(27), p 7650-7658.
A. Merca, et al., “Mimicking biological cation-transport based on sphere-surface supramolecular chemistry: Simultaneous interaction of porous capsules with molecular plugs and passing cations”, Chemistry - a European Journal, vol. 13, 2007, pp. 7650-7658.
Merca, A., Haupt, E.T.K., Mitra, T., Bögge, H., Rehder, D., Müller, A.: Mimicking biological cation-transport based on sphere-surface supramolecular chemistry: Simultaneous interaction of porous capsules with molecular plugs and passing cations. Chemistry - a European Journal. 13, 7650-7658 (2007).
Merca, Alice, Haupt, Erhard T. K., Mitra, Tamoghna, Bögge, Hartmut, Rehder, Dieter, and Müller, Achim. “Mimicking biological cation-transport based on sphere-surface supramolecular chemistry: Simultaneous interaction of porous capsules with molecular plugs and passing cations”. Chemistry - a European Journal 13.27 (2007): 7650-7658.

7 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

Densely Packed Hydrophobic Clustering: Encapsulated Valerates Form a High-Temperature-Stable {Mo132 } Capsule System.
Garai S, Bögge H, Merca A, Petina OA, Grego A, Gouzerh P, Haupt ET, Weinstock IA, Müller A., Angew Chem Int Ed Engl 55(23), 2016
PMID: 27140207
Tracking "apolar" NMe4+ ions within two polyoxothiomolybdates that have the same pores: smaller clathrate and larger highly porous clusters in action.
Korenev VS, Boulay AG, Haouas M, Bannani F, Fedin VP, Sokolov MN, Terazzi E, Garai S, Müller A, Taulelle F, Marrot J, Leclerc N, Floquet S, Cadot E., Chemistry 20(11), 2014
PMID: 24519761
Solid-state dynamics of uranyl polyoxometalates.
Alam TM, Liao Z, Zakharov LN, Nyman M., Chemistry 20(27), 2014
PMID: 24889825
Guests on different internal capsule sites exchange with each other and with the outside.
Petina O, Rehder D, Haupt ET, Grego A, Weinstock IA, Merca A, Bögge H, Szakács J, Müller A., Angew Chem Int Ed Engl 50(2), 2011
PMID: 21132826
Hydrophobic interactions and clustering in a porous capsule: option to remove hydrophobic materials from water.
Schäffer C, Todea AM, Bögge H, Petina OA, Rehder D, Haupt ET, Müller A., Chemistry 17(35), 2011
PMID: 21748814
Confinement and step-wise reopening of channels in an artificial cell/inorganic capsule: a 7Li NMR study.
Haupt ET, Wontorra C, Rehder D, Merca A, Müller A., Chemistry 14(29), 2008
PMID: 18773407

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