Naphthyridine Derivatives as a Model System for Potential Lithium-Sulfur Energy-Storage Applications

Naphthyridines have been identified as structural elements in sulfurized polyacrylonitrile, which is a common electrode material in lithium–sulfur batteries. Some dibenzonaphthyridine derivatives with a fused dithiolo moiety were prepared as model compounds for battery studies. These heterocyclic sy...

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Bibliographic Details
Published in:European journal of organic chemistry 2015-02, Vol.2015 (5), p.933-937
Main Authors: Resch, Sebastian, Schneider, Anna-Rebekka, Beichler, Ronja, Spera, Marcelle B. M., Fanous, Jean, Schollmeyer, Dieter, Waldvogel, Siegfried R.
Format: Article
Language:English
Subjects:
Batteries
Electrochemistry
Energy storage
Heterocycles
Lithium
Sulfur
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Summary:Naphthyridines have been identified as structural elements in sulfurized polyacrylonitrile, which is a common electrode material in lithium–sulfur batteries. Some dibenzonaphthyridine derivatives with a fused dithiolo moiety were prepared as model compounds for battery studies. These heterocyclic systems were prepared via the corresponding diphenyldicarbamide intermediate. Followed by naphthyridione formation, stepwise installation of the dithiolane subunit occurred in a straightforward manner. In the solid state, the heteroaromatic system is completely planar and was thoroughly characterized. Initial battery cycling tests indicated a potential use of such structural motifs in sulfur–lithium systems. The structure of a polyacrylonitrile‐derived sulfur composite is elucidated by a bottom‐up approach. New naphthyridine derivatives are synthesized as model systems for analytical comparison. The IR, NMR, and UV/Vis spectroscopy data indicate a strong correlation between this simple model compound and sulfurized polyacrylonitrile polymer.
ISSN:1434-193X
1099-0690
DOI:10.1002/ejoc.201403542