443282-71-1Relevant academic research and scientific papers
Synthetic and electrochemical studies on 1,1′-dithia-substituted derivatives of ferrocene and structure of 1,3-dithia[3]ferrocenophane [Fe(C5H4S)2CH2]
Steudel, Ralf,Hassenberg, Karin,Pickardt, Joachim,Grigiotti, Emanuela,Zanello, Piero
, p. 2604 - 2608 (2002)
The bimetallic complexes fc(μ2-S)2TiCp22 (1, fc = 1,1′-ferrpcenyl, Cp = cyclopentadienyl) and fc(μ2-S2)(μ2-S)TiCp2 (2) were synthesized by reaction of fc(SH)2 with Cp2TiCl2, and from fcS3 and Cp2Ti(CO)2, respectively. The novel tetrasulfane fcS4 was obtained from 2 and SCl2. 1,3-Dithia[3]ferrocenophane fcS2CH2 was obtained from fc(SH)2 and CH2Cl2 in the presence of Cp2TiCl2 and KOH. The molecular and crystal structure of fcS2CH2 was determined by X-ray crystallography; the molecular symmetry is Cs. Electrochemical studies on the recently prepared ferrocenophanes fcS2-1-SO, fcS2-1-SO2, and fcS2-2-SO show that, with respect to fcS3, the progressive oxidation of the trisulfane bridge makes more and more difficult the fc/fc+ oxidation, whereas insertion of a Cp2Ti fragment exerts the opposite effect.
