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Published on: May 27, 2020
Ferrocenes with a Persulfurated Cyclopentadienyl Ring: Synthesis, Structural Studies, and Optoelectronic Properties
Tobias Blockhaus1, Christian Klein-Heßling1, Peter M Zehetmaier1
1Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstrasse 9, 81377, Munich, Germany.
Abstract:
Persulfurated arenes are a fascinating class of functional molecules with a wide range of potential applications. Ferrocenes are also a multifaceted class of aromatic compounds that can easily be finetuned for an enormous variety of desired properties. A combination of both substance classes might yield an even wider field of applications. Herein, we describe the synthesis of two ferrocenes with one persulfurated cyclopentadienyl ring [C5 (SR)5 ], with R=Me or Ph, together with their crystal structures, optical, and electrochemical properties. Both crystal structures show significant intramolecular sulfur-iron interactions as well as weak intermolecular sulfur- contacts. Cyclovoltammetry of the [C5 (SPh)5 ] compound shows a high oxidation potential of 651 mV vs. FcH/FcH+ .
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