Table 1: Transition temperatures for charge localization , charge-order , spin-Peierls transition and Néel order of different salts. denotes the antiferromagnetic exchange constant obtained from susceptibility measurements fitted according to [8], is the charge imbalance between two TMTTF molecules (for ) measured by vibrational spectroscopy and indicate the zero-temperature charge gap derived from dc transport along the -direction. is the angle the g-tensor rotates around the molecular axis in the CO state determined at .

Compound
(K) (K) (K) (K) (K)(e) (K) ()

250 67 19420 0.15 small 22
250 102 13 410 0.21 310 22
240 157 8 400 0.29 745 32