Iron Sulfido Derivatives of the Fullerenes C60 and C70

Mark D. Westmeyer, Thomas B. Rauchfuss, Atul K. Verma

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Toluene solutions of C60 react upon UV irradiation with Fe2S2(CO)6 to give C60[S2Fe2(CO)6]n where n = 1-6. C60[S2Fe2(CO)6]n where n = 1-3 have been isolated and characterized. Crystallographic studies of C60S2Fe2-(CO)6 show that the S-S bond of the Fe2 reagent is cleaved to give a dithiolate with idealized C2v symmetry. The addition occurred at a 6,6 fusion, and the metrical details show that the Fe2 portion of the molecule resembles C2H4S2Fe2(CO)6. IR spectroscopic measurements indicate that the Fe2(CO)6 subunits in the multiple-addition species (n > 1) interact only weakly. UV-vis spectra of the adducts show a shift to shorter wavelength with addition of each S2Fe2(CO)6 unit. Photoaddition of the phosphine complex Fe2S2(CO)5(PPh3) to C60 gave C60-[S2Fe2(CO)5(PPh 3)]n, where n = 1-3. 31P{1H} NMR studies show that the double adduct consists of multiple isomers. Photoaddition of Fe2S2(CO)6 to C70 gave a series of adducts C70[S2Fe2(CO)6]n where n = 1-4. HPLC analyses show one, four, and three isomers for the adducts, respectively.

Original languageEnglish (US)
Pages (from-to)7140-7147
Number of pages8
JournalInorganic Chemistry
Issue number24
StatePublished - 1996

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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