Synthesis, Structural Characterization and Electronic Properties of 3,3′′′′′‐Bis (butylsulfanyl) ‐2,2′:5′,2′′:5′′,2′′′:5′′′,2′′′′:5′′′′,2′′′′′‐sexithiophene.

Synthesis and NMR, UV–VIS, electrochemical, mobility and X-ray characterization of 3,3″″′-bis(butylsulfanyl)-2,2′∶5′,2″∶5″,2‴∶5‴,2″″∶5″″,2″″′-sexithiophene are reported. This compound combines the promising properties already observed for 3,3‴,3″″′-tris(butylsulfanyl)-2,2′∶5′,2″∶5∶,2‴∶5‴,2″″∶5″″,2″″′-sexithiophene with a physical state more suitable for its use in field-effect transistors. In particular, the stability of the oxidized forms, the close packing in the solid state together with the mobility and on/off ratio observed make this sexithiophene of potential interest for organic semiconductors.