221313-45-7Relevant articles and documents
Synthesis, conformational interconversion, and photophysics of tethered porphyrin-fullerene dyads with parachute topology
Fazio, Michael A.,Durandin, Alexander,Tkachenko, Nikolai V.,Niemi, Marja,Lemmetyinen, Helge,Schuster, David I.
, p. 7698 - 7705 (2009)
The synthesis of a porphyrin-fullerene dyad with "parachute" topology is reported. To determine whether the dyad is "flexing" at room temperature, low-temperature NMR experiments were used. Computational modeling has shown the low-energy conformation of the dyad to be nonsymmetric. Although, 1H NMR spec-troscopy at room temperature is consistent with a molecule with C2v symmetry, the spectrum changes on lowering the temperature consistent with "wind-shield wiper"-like motion, in which the porphyrin moiety rotates from one side of the C60 sphere to the other. Nanosecond and picosecond fluorescence lifetime experiments show two components contribute to the fluorescence decay, also consistent with the presence of more than one conformer. 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
A novel parachute-shaped C60-porphyrin dyad
Cheng, Peng,Wilson, Stephen R.,Schuster, David I.
, p. 89 - 90 (1999)
A novel covalently linked C60-porphyrin dyad has been prepared by cyclopropanation of C60 with a strapped porphyrin malonate; its fluorescence spectrum shows strong quenching of the porphyrin singlet excited state by the attached Cs
Design, synthesis, and photophysical studies of a porphyrin-fullerene dyad with parachute topology; charge recombination in the marcus inverted region
Schuster, David I.,Cheng, Peng,Jarowski, Peter D.,Guldi, Dirk M.,Luo, Chuping,Echegoyen, Luis,Pyo, Soomi,Holzwarth, Alfred R.,Braslavsky, Silvia E.,Williams, Rene M.,Klihm, Gudrun
, p. 7257 - 7270 (2007/10/03)
As part of a continuing investigation of the topological control of intramolecular electron transfer (ET) in donor-acceptor systems, a symmetrical parachute-shaped octaethylporphyrin-fullerene dyad has been synthesized. A symmetrical strap, attached to or
