TY - JOUR
T1 - Ultrafast photoinduced electron transfer reactions in supramolecular arrays
T2 - From charge separation and storage to molecular switches
AU - Wasielewski, Michael R.
AU - O'Neil, Michael P.
AU - Gosztola, David
AU - Niemczyk, Mark P.
AU - Svec, Walter A.
N1 - Funding Information:
This work was supported by the Exploratory Research Fund of ANL and the Divisions of Chemical Sciences and Advanced Energy Projects, Office of Basic Energy Sciences, U. S. Department of Energy under contract W-31-109-Eng-38.
PY - 1992/1/1
Y1 - 1992/1/1
N2 - Photochemical electron transfer reactions on a picosecond time scale have been studied in two covalently-linked donor-acceptor systems. The first molecule is a chlorophyll-porphyrin-quinone triad that closely mimics photosynthetic charge separation by undergoing picosecond electron transfer in low temperature glasses to yield a radical ion pair that lives for 2 ms and exhibits spin-polarization. The second molecule is an electron donor-acceptor-donor molecule, consisting of two porphyrin donors rigidly attached to opposite ends of the two-electron acceptor N,N’-diphenyl-3,4,9,10-perylenebis(dicarboximide). This molecule acts as a light intensity dependent molecular switch on a picosecond time scale.
AB - Photochemical electron transfer reactions on a picosecond time scale have been studied in two covalently-linked donor-acceptor systems. The first molecule is a chlorophyll-porphyrin-quinone triad that closely mimics photosynthetic charge separation by undergoing picosecond electron transfer in low temperature glasses to yield a radical ion pair that lives for 2 ms and exhibits spin-polarization. The second molecule is an electron donor-acceptor-donor molecule, consisting of two porphyrin donors rigidly attached to opposite ends of the two-electron acceptor N,N’-diphenyl-3,4,9,10-perylenebis(dicarboximide). This molecule acts as a light intensity dependent molecular switch on a picosecond time scale.
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U2 - 10.1351/pac199264091319
DO - 10.1351/pac199264091319
M3 - Article
AN - SCOPUS:0008887815
SN - 0033-4545
VL - 64
SP - 1319
EP - 1325
JO - Pure and Applied Chemistry
JF - Pure and Applied Chemistry
IS - 9
ER -