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Long-range, photoinduced charge separation in solvent-free donor—bridge—acceptor molecules

✍ Scribed by Joshua Jortner; M. Bixon; Bas Wegewijs; Jan W. Verhoeven; Rudolf P.H. Rettschnick

Book ID
103034483
Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
446 KB
Volume
205
Category
Article
ISSN
0009-2614

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✦ Synopsis

Charge separation in isolated supennolecules, consisting of an aniline or Cmethoxy aniline donor and a cyanonaphthalene acceptor connected by a semirigid bridge, is described in terms of irreversible sequential intramolecular relaxation involving electron transfer from an electronically excited molecular state and electrostatically driven folding, Sequential folding of the charge transfer state extends the energy range of this state, which is accessible by radiationless electron transfer. The analysis of the intramolecular electron transfer dynamics led to agreement between the distance scale for charge separation inferred from energetic and structural data and accounted for the excess energy dependence of the nuclear Franck-Condon vibrational overlap factors,

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Strong effects of the bridge configurati
Strong effects of the bridge configuration on photoinduced charge separation in rigidly linked donor-acceptor systems
✍ Anna M. Oliver; Donald C. Craig; Michael N. Paddon-Row; Jan Kroon; Jan W. Verhoe 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 711 KB

Photoinduced electron-transfer rates are reported for two pairs of rigid bichromophoric molecules 1(6)/2(6) and 1(8)/2( 8). In the first pair electron donor and acceptor are separated by six, in the second pair by eight, carbon-carbon o bonds. While these o bonds provide an all-trans coupling path