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Determination of the charge of Al₁₃ Keggin oligocations intercalated into synthetic hectorite

Title data

Schöttle, Marius ; Schuchardt, Dominik ; Edenharter, Andreas ; Koch, Sebastian ; Senker, Jürgen ; Breu, Josef:
Determination of the charge of Al₁₃ Keggin oligocations intercalated into synthetic hectorite.
In: Zeitschrift für Naturforschung B. Vol. 74 (January 2019) Issue 1 . - pp. 85-90.
ISSN 1865-7117
DOI: https://doi.org/10.1515/znb-2018-0172

Abstract in another language

Applying a nema tic liquid crystalline phase of a synthetic Na-hectorite with layer separations >100 nm, the reaction time for pillaring with Al-13 Keggin oligocation could be reduced to seconds ensuring that cation exchange is controlled by thermodynamics. With this material at hand we are able to resolve the long-standing dispute regarding the charge of intercalated Keggin oligocations. Micropore sizes as determined by physisorption isotherms, adsorption isotherms obtained via elemental analysis, and results of Al-27 solid-state NMR and pyridine probe IR spectroscopy favor a charge of +7 for the Al-13 pillars intercalated into hectorite unaltered.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry III
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry III > Chair Anorganic Chemistry III - Univ.-Prof. Dr. Jürgen Senker
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 07 Jun 2019 07:03
Last Modified: 07 Jun 2019 07:03
URI: https://eref.uni-bayreuth.de/id/eprint/49286