2019, Vol.48, No.12


Derivatives of a tris-fused donor composed of two tetrathiafulvalenes (TTFs) and one extended TTF with an anthraquinoid spacer (TTFAQ) (3) were successfully synthesized. Cyclic voltammetry of the tetrakis(n-hexylthio) derivative (3Dd) indicated the coexistence of two different reduction processes from 3Dd2+ to 3Dd. A coin-type cell composed of the positive electrode incorporating the tetramethyl-3 (3Bb) showed relatively stable cycle-life performance (75% of the initial discharge capacity after 50 cycles).