Synthesis and properties of naphthalenes carrying two cofacially oriented α-oligothiophene units at the peri positions
摘要:
Two cofacially oriented (oligo)thiophene units of 1,8-di(2-thienyl)-, 1,8-bis(5,2'-bithiophene-2-yl)-, and 1,8-bis(5,2':5',2"-terthiophene-2-yl)naphthalenes, which were synthesized starting from 1,8-dibromonaphthalene, interact with each other to stabilize the radical cations of these compounds, thus decreasing their CV oxidation potentials.
5,5′-Bis[8-(2-thienyl)naphthalene-1-yl]-2,2′-bithiophene and 5,5″-bis[8-(2-thienyl)naphthalene-1-yl]-2,2′:5′,2″-terthiophene were synthesized starting from 1,8-di(2-thienyl)naphthalene and 5,5″′-bis[8-(5,2′-bithiophene-2-yl)-naphthalene-1-yl]-2,2′:5′,2″:5″,2″′-quaterthiophene from 1,8-bis(5,2′-bithiophene-2-yl)naphthalene to investigate intramolecular interactions among the three thiophene units that