Abstract
Abstract Intercalation of the heteroaromatic π-donors tetraselenafulvalene (TSF) and tetramethyltetraselenafulvalene (TMTSF) into the layered host FeOCl results in new low-dimensional materials of stoichiometry FeOCl(TSF)1/8.5 and FeOCl(TMTSF)1/10. Powder x-ray diffracton data and FTIR spectra indicate that in each case the guest molecules are oriented perpendicular to the host layers and are present as the radical cations within the host galleries. Four-probe conductivity measurements show a 104 and 103-fold increase (for the TSF and TMTSF intercalates, respectively) in electrical conductivity over that of pristine FeOCl, although both FeOCl(TSF)1/8.5 and FeOCl(TMTSF)1/10 remain semiconductors.
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