TY - JOUR
T1 - Mono- and bis(pyrrolo)tetrathiafulvalene derivatives tethered to C60
T2 - synthesis, photophysical studies, and self-assembled monolayers
AU - Vico Solano, Marta
AU - Della Pia, Eduardo Antonio
AU - Jevric, Martyn
AU - Schubert, Christina
AU - Wang, Xintai
AU - van der Pol, Cornelia
AU - Kadziola, Anders
AU - Nørgaard, Kasper
AU - Guldi, Dirk M.
AU - Nielsen, Mogens Brøndsted
AU - Jeppesen, Jan Oskar
PY - 2014/8/4
Y1 - 2014/8/4
N2 - A series of mono- (MPTTF) and bis(pyrrolo)tetrathiafulvalene (BPTTF) derivatives tethered to one or two C60 moieties was synthesized and characterized. The synthetic strategy for these dumbbell-shaped compounds was based on a 1,3-dipolar cycloaddition reaction between aldehyde-functionalized MPTTF/BPTTF derivatives, two different tailor-made amino acids, and C 60. Electronic communication between the MPTTF/BPTTF units and the C60 moieties was studied by a variety of techniques including cyclic voltammetry and absorption spectroscopy. These solution-based studies indicated no observable electronic communication between the MPTTF/BPTTF units and the C60 moieties. In addition, femtosecond and nanosecond transient absorption spectroscopy revealed, rather surprisingly, that no charge transfer from the MPTTF/BPTTF units to the C60 moieties takes place on excitation of the fullerene moiety. Finally, it was shown that the MPTTF-C 60 and C60-BPTTF-C60 dyad and triad molecules formed self-assembled monolayers on a Au(111) surface by anchoring to C 60.
AB - A series of mono- (MPTTF) and bis(pyrrolo)tetrathiafulvalene (BPTTF) derivatives tethered to one or two C60 moieties was synthesized and characterized. The synthetic strategy for these dumbbell-shaped compounds was based on a 1,3-dipolar cycloaddition reaction between aldehyde-functionalized MPTTF/BPTTF derivatives, two different tailor-made amino acids, and C 60. Electronic communication between the MPTTF/BPTTF units and the C60 moieties was studied by a variety of techniques including cyclic voltammetry and absorption spectroscopy. These solution-based studies indicated no observable electronic communication between the MPTTF/BPTTF units and the C60 moieties. In addition, femtosecond and nanosecond transient absorption spectroscopy revealed, rather surprisingly, that no charge transfer from the MPTTF/BPTTF units to the C60 moieties takes place on excitation of the fullerene moiety. Finally, it was shown that the MPTTF-C 60 and C60-BPTTF-C60 dyad and triad molecules formed self-assembled monolayers on a Au(111) surface by anchoring to C 60.
U2 - 10.1002/chem.201402623
DO - 10.1002/chem.201402623
M3 - Journal article
C2 - 25043963
SN - 0947-6539
VL - 20
SP - 9918
EP - 9929
JO - Chemistry: A European Journal
JF - Chemistry: A European Journal
IS - 32
ER -