Role of hydrogen bonding in charge-ordered organic conductor $\alpha$-(BEDT-TTF)${}_2$I${}_3$ probed by ${}^{127}$I nuclear quadrupole resonance

T. Kobayashi, Y. Kato, H. Taniguchi +3

We present ${}^{127}$I nuclear quadrupole resonance spectra and nuclear relaxation of $\alpha$-(BEDT-TTF)${}_2$I${}_3$ that undergoes a charge-ordering transition. Only one of the two I${}_3$ a…