Charge-transfer complexes, in organic

Drori T, Holt J, Vardeny ZV (2010) Optical studies of the charge transfer complex in polythiophene/fullerene blends for organic photovoltaic apphcations. Phys Rev B 82 075207... 

KoswerEM (1965) Reactions through charge transfer complexes. In TaftRW (ed) Progress in Physical Organic Chemistry, Vol 3. WUey Interscience, New York, p 81... 

Charge-Transfer Compounds. Similar to iodine and chlorine, bromine can form charge-transfer complexes with organic molecules that can serve as Lewis bases. The frequency of the intense uv charge-transfer adsorption band is dependent on the ionization potential of the donor solvent molecule. Electronic charge can be transferred from a 7t-electron system as in the case of aromatic compounds or from lone-pairs of electrons as in ethers and amines. 

G. Jones, Photochemistry and Photophysics of Organic Charge Transfer Complexes, in M. A. Fox and M. Chanon (Eds.), Photoinduced Electron Transfer, Elsevier, Amsterdam, 1988, pp. 245. 

This type of mechanism has been proposed for a variety of different NADH oxidation systems, including phenoxazine dyes [35, 36], phenothia-zine dyes [39] and a conducting organic salt [40]. Experimental evidence for the formation of a complex during the chemical oxidation of NADH has been provided by Fukuzumi et al. [41]. These authors showed that a mixture of an NADH model compound and a quinone derivative formed a charge-transfer complex in solution as determined by UV/Vis spectros-... 

A. Iodine The universal detection reagent iodine is used either as a 1% alcoholic spray, or the plate is placed in a closed jar or tank containing iodine crystals. The iodine vapor dissolves in, or forms weak charge-transfer complexes with organic compounds, which show up as brown spots on a pale yellow background within a few minutes. After marking zones for future reference, exposure of the plate to air causes the iodine to sublimate and the spots to fade, after which the plate can be sprayed with another reagent or the solute can be eluted from the plate for further analysis. 

On organic charge-transfer complexes in general, see, (a) R. Foster, Organic Charge-Tranter Complexes, Academic Press, New York, 1969 (b) R. Foster (Ed.), Molecular Complexes, Academic Press, New York, Vol. 1, Vol. 2, 1979. 

Many processes in living organisms are closely linked to energy transfer and to charge transfer complexes. Therefore, studies of the properties of PCSs are important in solving certain problems of bioenergetics, enzymatic catalysis, photoinduced carcinogenesis, etc. 

Charge transfer complexes (CT complexes) primarily occur in planar organic molecules with conjugated 7t-electron systems [4]. Examples include ... 

Foster R (1969) Crystal structures. In Blomquist AT (ed) Organic charge-transfer complexes. Academic, London, pp 216-251... 

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