Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-8082
Authors: | Cebi, Erkam Klett, Jan |
Title: | Endohedral mixed aggregates : sodium alkoxide cages with organic or inorganic central anions and variable hull |
Online publication date: | 14-Nov-2022 |
Year of first publication: | 2021 |
Language: | english |
Abstract: | Alkali metal alkoxides are widely used in chemistry due to their Brønsted basic and nucleophilic properties. Potassium alkoxides assist alkyllithium in the metalation of hydrocarbons in Lochmann-Schlosser-bases. Both compounds form mixed aggregates, which enhance the thermal stability, solubility, and the basic reactivity of these mixtures. A very unusual spherical mixed alkoxy aggregate was discovered by Grützmacher et al., where a central dihydrogen phosphide anion is surrounded by a highly dynamic shell of thirteen sodium atoms and a hull of twelve tert-butoxide groups. This structural motif can be reproduced by a reaction of trimethylsilyl compounds of methane, halogens, or pseudo-halogens with excess sodium tert-butoxide. A nucleophilic substitution releases the corresponding anion, which is then encapsulated by the sodium alkoxide units. The compounds are soluble in hydrocarbon solvents, enabling studies of solutions by high-resolution NMR spectroscopy and IR/Raman studies of the crystalline materials. |
DDC: | 540 Chemie 540 Chemistry and allied sciences |
Institution: | Johannes Gutenberg-Universität Mainz |
Department: | FB 09 Chemie, Pharmazie u. Geowissensch. |
Place: | Mainz |
ROR: | https://ror.org/023b0x485 |
DOI: | http://doi.org/10.25358/openscience-8082 |
Version: | Published version |
Publication type: | Zeitschriftenaufsatz |
License: | CC BY |
Information on rights of use: | https://creativecommons.org/licenses/by/4.0/ |
Journal: | Chemistry - a European journal 27 49 |
Pages or article number: | 12693 12701 |
Publisher: | Wiley-VCH |
Publisher place: | Weinheim |
Issue date: | 2021 |
ISSN: | 1521-3765 |
Publisher DOI: | 10.1002/chem.202100912 |
Appears in collections: | JGU-Publikationen |
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File | Description | Size | Format | ||
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endohedral_mixed_aggregates__-20221114101242047.pdf | 438.89 kB | Adobe PDF | View/Open |