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Chemically induced dynamic nuclear electron transfer

Chain processes, free radical, in aliphatic systems involving an electron transfer reaction, 23,271 Charge density-NMR chemical shift correlation in organic ions, 11,125 Chemically induced dynamic nuclear spin polarization and its applications, 10, 53 Chemiluminescence of organic compounds, 18,187... [Pg.336]

Further evidence for the formation of alkene radical cations derives from the work of Giese, Rist, and coworkers who observed a chemically induced dynamic nuclear polarization (CIDNP) effect on the dihydrofuran 6 arising from fragmentation of radical 5 and electron transfer from the benzoyl radical within the solvent cage (Scheme 6) [67]. [Pg.19]

Several lines of evidence indicate that the oxidative addition of RX to the electron-rich early-metal complex Cp2Zr(II)L2also occurs by a radical pathway initiated by electron transfer (Equation 7.8). - Zr(III) intermediates were observed by EPR, and evidence for effects of CIDNP (Chemically Induced Dynamic Nuclear Polarization) were observed in... [Pg.308]

Goez, M., Rozwadowski, J., and Marciniak, B., Photoinduced electron transfer, decarboxylation and radical fragmentation of cysteine derivatives a chemically induced dynamic nuclear polarization study, /. Am. Chem. Soc., 118, 2882, 1996. [Pg.114]

A triplex electron-transfer mechanism involving interaction of dibenzoylmethanatoboron difluoride (DMB) and an aromatic co-sensitizer (A — toluene, ethylbenzene, biphenyl, and durene) with N was suggested based on the results from a chemically induced dynamic nuclear polarization study of the reaction ... [Pg.344]

Becker, H. G. O., Pfeifer, D., and Urban, K., Evidence for the Marcus inverted region of back-electron transfer in solution by means of chemically induced dynamic nuclear polarization, /. Chem. Soc., Faraday Trans. 2, 85,1765, 1989. [Pg.844]

The seminal work of Marcus and Hush has had a significant impact on the development of PET. Pioneering efforts by Sutin, Hopfield, Jortner, and others established the connection between thermal electron transfer and photoelectron transfer [6]. This work set the stage for a notable series of experiments where laser flash spectroscopy [7], chemically induced nuclear polarization [8], resonance Raman spectroscopy [9], time-resolved microwave conductivity [10], and time-resolved photoacoustic calorimetry [11], to site only a few examples, have been successfully employed to chart the dynamics of PET in homogeneous solution, the solid-state, and organized assemblies. [Pg.23]


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See also in sourсe #XX -- [ Pg.114 , Pg.115 , Pg.116 , Pg.117 , Pg.118 , Pg.119 , Pg.120 , Pg.121 , Pg.122 ]




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