TY - JOUR
T1 - Photoswitchable molecular wires: from a sexithiophene to a dithienylethene and back
AU - Milder, Maaike T.W.
AU - Areephong, Jetsuda
AU - Feringa, Ben L.
AU - Browne, Wesley R.
AU - Herek, Jennifer Lynn
PY - 2009
Y1 - 2009
N2 - Photoswitchable dithienylethene groups, added to both α-ends of a sexithiophene molecular wire, switch reversibly between their open and closed forms upon irradiation. The open form has an excited state lifetime of 500 ps and is highly fluorescent, as is typical for oligothiophenes. In contrast the closed form is non-fluorescent and the excited state lifetime is a shorter by a factor of 100, reminiscent of a dithienylethene. In this system, we control the fundamental character of a molecular system through optical switching; toggling between a sexithiophene molecular wire and a dithienylethene reversibly.
AB - Photoswitchable dithienylethene groups, added to both α-ends of a sexithiophene molecular wire, switch reversibly between their open and closed forms upon irradiation. The open form has an excited state lifetime of 500 ps and is highly fluorescent, as is typical for oligothiophenes. In contrast the closed form is non-fluorescent and the excited state lifetime is a shorter by a factor of 100, reminiscent of a dithienylethene. In this system, we control the fundamental character of a molecular system through optical switching; toggling between a sexithiophene molecular wire and a dithienylethene reversibly.
KW - IR-80112
U2 - 10.1016/j.cplett.2009.08.013
DO - 10.1016/j.cplett.2009.08.013
M3 - Article
VL - 479
SP - 137
EP - 139
JO - Chemical physics letters
JF - Chemical physics letters
SN - 0009-2614
IS - 1-3
ER -