Site-Specific Metal Chelation Facilitates the Unveiling of Hidden Coordination Sites in an FeII/FeIII-Seamed Pyrogallol[4]arene Nanocapsule
| Autor: | Hector W. L. Fraser, Justin R. Walensky, Jerry L. Atwood, Euan K. Brechin, Scott J. Dalgarno, Jakob E. Baumeister, Charles L. Barnes, Steven P. Kelley, Asanka S. Rathnayake, Pokpong Rungthanaphatsophon, Joshua White |
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| Rok vydání: | 2018 |
| Předmět: |
010405 organic chemistry
Chemistry Metal ions in aqueous solution General Chemistry 010402 general chemistry Electrochemistry 01 natural sciences Biochemistry Catalysis Nanocapsules 0104 chemical sciences Ion Metal chelation chemistry.chemical_compound Colloid and Surface Chemistry Pyrogallol Polymer chemistry |
| Zdroj: | Rathnayake, A S, Fraser, H W L, Brechin, E K, Dalgarno, S J, Baumeister, J E, White, J, Rungthanaphatsophon, P, Walensky, J R, Kelley, S P, Barnes, C L & Atwood, J L 2018, ' Site-Specific Metal Chelation Facilitates the Unveiling of Hidden Coordination Sites in an Fe II/Fe III-Seamed Pyrogallol[4]arene Nanocapsule ', Journal of the American Chemical Society . https://doi.org/10.1021/jacs.8b10186 |
| ISSN: | 1520-5126 0002-7863 |
| DOI: | 10.1021/jacs.8b10186 |
| Popis: | Under suitable conditions, C-alkylpyrogallol[4]arenes (PgCs) arrange into spherical metal–organic nanocapsules (MONCs) upon coordination to appropriate metal ions. Herein we present the synthesis and structural characterization of a novel FeII/FeIII-seamed MONC, as well as studies related to its electrochemical and magnetic behaviors. Unlike other MONCs that are assembled through 24 metal ions, this nanocapsule comprises 32 Fe ions, uncovering 8 additional coordination sites situated between the constituent PgC subunits. The FeII ions are likely formed by the reducing ability of DMF used in the synthesis, representing a novel synthetic route toward polynuclear mixed-valence MONCs. |
| Databáze: | OpenAIRE |
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