%0 Journal Article %1 PSSC:PSSC201100729 %A Knoblauch, Tobias %A Dressel, Martin %D 2012 %I WILEY-VCH Verlag %J physica status solidi (c) %K infrared spectroscopy %N 5 %P 1158-1160 %R 10.1002/pssc.201100729 %T Charge disproportionation in (TMTTF)2X (X = PF6, AsF6 and SbF6) investigated by infrared spectroscopy %U http://dx.doi.org/10.1002/pssc.201100729 %V 9 %X The charge-transfer salts (TMTTF)2X (X = PF6, AsF6 and SbF6) undergo a charge-order transition at different temperatures TCO. We have performed infrared measurements on the ac plane with light polarized in the c direction in the temperature range from 290 down to 10 K. Below TCO, we report the splitting of the ν28 (B1u) mode including the charge sensitive C=C double bond.From the spectra, we respectively derived a charge disproportionation of 2δ = 0.15 e, 0.21 e and 0.29 e for (TMTTF)2PF6, (TMTTF)2AsF6 and (TMTTF)2SbF6. The temperature-dependent development of 2δ exhibits a steep increase below TCO resembling a mean-field behaviour. We compare our results with previous infrared and NMR values. (© 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

@article{PSSC:PSSC201100729, abstract = {The charge-transfer salts (TMTTF)2X (X = PF6, AsF6 and SbF6) undergo a charge-order transition at different temperatures TCO. We have performed infrared measurements on the ac plane with light polarized in the c direction in the temperature range from 290 down to 10 K. Below TCO, we report the splitting of the ν28 (B1u) mode including the charge sensitive C=C double bond.From the spectra, we respectively derived a charge disproportionation of 2δ = 0.15 e, 0.21 e and 0.29 e for (TMTTF)2PF6, (TMTTF)2AsF6 and (TMTTF)2SbF6. The temperature-dependent development of 2δ exhibits a steep increase below TCO resembling a mean-field behaviour. We compare our results with previous infrared and NMR values. (© 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)}, added-at = {2018-03-16T13:56:02.000+0100}, author = {Knoblauch, Tobias and Dressel, Martin}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2931c828bea2ac230fe761f5f8580d0e0/ulrikeoffenbeck}, doi = {10.1002/pssc.201100729}, interhash = {fa3e9c3379e5dc5d15cba423886b92c4}, intrahash = {931c828bea2ac230fe761f5f8580d0e0}, issn = {1610-1642}, journal = {physica status solidi (c)}, keywords = {infrared spectroscopy}, number = 5, pages = {1158-1160}, publisher = {WILEY-VCH Verlag}, timestamp = {2018-03-16T12:56:02.000+0100}, title = {Charge disproportionation in (TMTTF)2X (X = PF6, AsF6 and SbF6) investigated by infrared spectroscopy}, url = {http://dx.doi.org/10.1002/pssc.201100729}, volume = 9, year = 2012 }