Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Walter A. Svec"'
Publikováno v:
Journal of the American Chemical Society. 122:9715-9722
We report on a series of electron donor−acceptor (D-A) dyads that undergo singlet-initiated charge separation to produce a strongly spin coupled radical ion pair that subsequently undergoes charge ...
Publikováno v:
The Journal of Physical Chemistry A. 104:6545-6551
The radical anions of aromatic diimides have been implicated recently in a wide variety of photochemical electron transfer reactions. Photoexcitation of these radical anions produces powerfully reducing species. Yet, the properties of the π* excited
Publikováno v:
Chemistry of Materials. 11:1409-1412
New organic materials that exhibit photorefractive effects are of wide interest for potential optical signal processing applications. The authors report on a photorefractive nematic liquid crystal composite containing the conjugated polymer poly(2,5-
Autor:
Lin X. Chen, David J. Gosztola, Michael R. Wasielewski, Peter L. Lee, P. A. Montano, Walter A. Svec
Publikováno v:
The Journal of Physical Chemistry B. 103:3270-3274
Time domain energy dispersive X-ray absorption spectroscopy provides a powerful probe of changes in molecular structure that occur during photoinduced electron transfer reactions. In this study a diporphyrin model for electron transfer within modifie
Publikováno v:
The Journal of Physical Chemistry B. 103:1386-1389
Transient absorption studies of intramolecular photoinduced charge separation and thermal charge recombination were carried out on a molecule consisting of a 4-(N-pyrrolidinyl)naphthalene-1,8-imide donor (PyrNI) covalently attached to a pyromellitimi
Publikováno v:
Nature. 396:60-63
Electron transfer from electron-donor to electron-acceptor molecules via a molecular ‘bridge’ is a feature of many biological andchemical systems. The electronic structure of the bridge component in donor–bridge–acceptor (DBA) systems is know
Autor:
Walter A. Svec, Tamar Galili, Michael R. Wasielewski, Gary P. Wiederrecht, Haim Levanon, Ayelet Regev
Publikováno v:
Journal of the American Chemical Society. 120:6366-6373
We report the results of time-resolved electron paramagnetic resonance (TREPR) studies of photoinduced charge separation in a series of biomimetic supramolecular compounds dissolved in oriented liquid crystal solvents. The molecules contain a chlorop
Publikováno v:
Journal of the American Chemical Society. 119:3358-3364
We report photorefractivity in nematic liquid crystals doped with electron donor-acceptor molecules that undergo intramolecular photoinduced charge separation. We show that subsequent intermolecular electron transfer from the intramolecular ion pairs
Publikováno v:
Science. 274:584-587
A prototype molecular switch is demonstrated that works on the principle that the local electric field produced by one photogenerated ion pair (D1+-A1−) can influence the rate constants for photoinduced electron transfer and recombination in a seco
Publikováno v:
Journal of the American Chemical Society. 118:81-88
We report ultrafast transient absorption studies of photoinduced electron transfer in the triad molecule zinc methyl 131-desoxopyropheophorbide a−pyromellitimide−1,8:4,5-naphthalenediimide (ZC−PI−NI) in solution. The absorption spectra of the