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Blockhaus, Tobias; Klein‐Heßling, Christian; Zehetmaier, Peter M.; Zott, Fabian L.; Jangra, Harish; Karaghiosoff, Konstantin; Sünkel, Karlheinz (October 2019): Ferrocenes with a Persulfurated Cyclopentadienyl Ring: Synthesis, Structural Studies, and Optoelectronic Properties. In: Chemistry-A European Journal, Vol. 25, No. 55: pp. 12684-12688
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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+.