Donor-Bridge-Acceptor systems

Wiberg J, Guo L, Pettersson K et al (2007) Charge recombination versus charge separation in donor-bridge-acceptor systems. J Am Chem Soc 129 155-163... [Pg.260]

Hayes RT, Wasielewski MR, Gosztola D (2000) Ultrafast photoswitched charge transmission through the bridge molecule in a donor-bridge-acceptor system. J Am Chem Soc 122 5563-5567... [Pg.260]

Chen KY, Hsieh CC, Cheng YM et al (2006) Tuning excited state electron transfer from an adiabatic to nonadiabatic type in donor-bridge-acceptor systems and the associated energy-transfer process. J Phys Chem A 110 12136-12144... [Pg.261]

Paddon-Row MN (2003) Superexchange-mediated charge separation and charge recombination in covalently linked donor-bridge-acceptor systems. Aust J Chem 56 729-748... [Pg.112]

Figure 1. Typical donor-bridge-acceptor system.

FIGURE 26. Some donor-bridge-acceptor systems by which energy transfer occurs through both Forster and Dexter mechanisms. (Modified from Ref. 78.)... [Pg.36]

Photoinduced electron transfer in DONOR-bridge-ACCEPTOR systems [11-13],... [Pg.13]

Fig. 3.6 Charge hopping in a donor-bridge-acceptor system involving a modular bridge...

For donor-bridge-acceptor systems, the regioselectivity of the C-C bond formation step critically depends on the position of the donor moiety along the tether chain and thus of the ring-size of the product. Conformational restrictions by certain functional groups within the tether can further influence the selectivity [12]. [Pg.285]

These structural changes involve the donor group of a donor-bridge-acceptor system it was therefore expected that a more electron-donating (electron rich) ligand at the donor metal would increase the molecular hyperpolarizability. This was confirmed in the substitution of cyclopentadie-nyl by the more electron-rich indenyl group for [Ru(C= CCf)H4-4-... [Pg.336]

Intramolecular Reactions Donor-Bridge-Acceptor Systems... [Pg.454]

Figure 11.1 Photoinduced electron transfer from molecules to semiconductor nanoparticles, (a) Depiction of a donor-bridge-acceptor system (b) schematic diagram of relevant orbitals.

Scherer, T., Hielkema, W., Krijnen, B., Hermant, R.M., Eijckelhoff, C., Kerkhof, E, Ng, A.K.E, Verleg, R., van der Tol, E.B., Brouwer, A.M., and Verhoeven, J.W., Synthesis and exploratory photophysical investigation of donor-bridge-acceptor systems derived from TV-substituted 4-piperidones, Reel. Trav. Chim. Pays-Bas, 112, 535, 1993. [Pg.304]

From Wegewijs B and Verhoeven J W 1999 Long-range charge separation in solvent-free donor-bridge-acceptor systems Adv. Chem. Phys. 106 248. [Pg.2973]

Further diverse systems have been developed and used in the investigation of intramolecular SET processes. These include styrene/amide-spacer/amine diads, 9-aminoacridine/polyether-spacer/benzoate ester diads, l-(4-cyano-phenyl)-4-(cyanomethylene)piperidine, 7i-donor/polyoxyethylene/Zn(II)por-phyrin/N,N -dimethyl-4,4 -bipyridinium systems, naphthalene/porphyrin/ quinone cyclophanes and their anthracene analogues, pyropheophytin-naphthoquinone diads, rigid donor/bridge/acceptor systems, anilide-substi-... [Pg.265]

Aibinsson B, Martensson J (2008) Long-range electron and excitation energy transfer in donor-bridge-acceptor systems. J Photochem Photobiol C 9 138-155... [Pg.144]

Filatov, I. and S. Larsson. 2002. Electronic structure and conduction mechanism of donor-bridge acceptor systems where PPV acts as a molecular wire. / Chem Phys 284 575. [Pg.733]

Andreasson, J., G. Kodis, T. Ljungdahl, A.L. Moore, T.A. Moore, D. Gust, J. Martensson, and B. Albinsson (2003). Photoinduced hole transfer from the triplet state in a porphyrin-based donor-bridge-acceptor system. J. Phys. Chem. A 107(42), 8825-8833. [Pg.715]

Kilsa, K., J. Kajanus, A.N. Macpherson, J. Martensson, and B. Albinsson (2001). Bridge-dependent electron transfer in porphyrin-based donor-bridge-acceptor systems. J. Am. Chem. Soc. 123(13), 3069—3080. [Pg.715]

Mixed-Type Donor-Bridge-Acceptor Systems Bearing Coupled with Metalloporphyrin Donor or Acceptor Moiety Push-Bridge-Acceptor and Donor-Bridge-Pull Systems... [Pg.206]

DONOR-BRIDGE-ACCEPTOR SYSTEMS WITH 7C-BRIDGES... [Pg.192]

Kilsd K, Kajanus J, Macpherson AN Martensson, J and Albinsson B Bridge-Dependent Electron Transfer in Porphyrin-Based Donor-Bridge-Acceptor Systems/. Am. Chem. Soc. 2001b 123 3069-3080. [Pg.215]

Table 9.5 Electron-transfer rate constants in donor-bridge-acceptor systems. D is the donor, A is the acceptor, B is the bridge, S is the solvent, CS is the charge separation (forward reaction). CR is the recombination (reverse reaction), r is the D-A distance. For compounds designated by initials, etc., see notes below this table. Columns (i) reference number (ii) component varied (D, B, A or S) (iii-vi), names of components D, B, A, S (vii) direction of reaction (CS or CR) (viii) range of values of (s ) (ix) and (x) values of fi (A ) and (< et)o (s ), where known (see text). DMA is p-dimethylanaline, pyr is 1-pyrenyl (from pyrene), anth is 9-anthyl (from anthracene)... [Pg.306]

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