2.2.6. Synthesis of (trans-TTF-py2)1.5(PF6)·EtOH (TTF-py2\_PF6)

TTF-py2, which is the mixture of cis and trans isomers (10 mg, 28 μmol), and TBAPF6 (40 mg, 104 μmol) were dissolved in 10 mL of CHCl3/EtOH (7:3, *v*/*v*) solution. A constant current of 2.5 μA was applied to the solution. After a week, black needle crystals were isolated from the anode, and subsequently washed by CHCl3 and EtOH followed by drying in air. Anal. Calcd for C26H21F6 N3OPS6: C, 42.85; H, 2.90; N, 5.77; S, 26.40; Cl, 0.00. Found: C, 42.32; H, 2.74; N, 5.85; S, 26.46; Cl, 0.06.

### **3. Results**
