Energy and Charge Transfer

Smiiconducting Polymer Composites Principles, Morphologies, Properties and Applications, First Edition. Edited by Xiaoniu Yang. 

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Alamiry MAH, Harriman A, Mallon LJ, Ulrich G, Ziessel R (2008) Energy- and charge-transfer processes in a perylene-BODIPY-pyridine tripartite array. Eur J Org Chem 16 2774-2782... 

Bloch AN (1974) Design and study of one-dimensional organic conductors I the role of structural disorder. In Masuda K, Silver M (eds) Energy and charge transfer in organic semiconductors. Plenum, New York... 

D. A. Micha. Time-dependent many-electron treatment of electronic energy and charge transfer in atomic collisions. J. Phys. Chem., 103 7562, 1999. 

Since many of these developments reach into the molecular domain, the understanding of nano-structured functional materials equally necessitates fundamental aspects of molecular physics, chemistry, and biology. The elementary energy and charge transfer processes bear much similarity to the molecular phenomena that have been revealed in unprecedented detail by ultrafast optical spectroscopies. Indeed, these spectroscopies, which were initially developed and applied for the study of small molecular species, have already evolved into an invaluable tool to monitor ultrafast dynamics in complex biological and materials systems. The molecular-level phenomena in question are often of intrinsically quantum mechanical character, and involve tunneling, non-Born-Oppenheimer effects, and quantum-mechanical phase coherence. Many of the advances that were made over recent years in the understanding of complex molecular systems can therefore be transposed and extended to the study of... 

Specifically, energy- and charge-transfer properties of several different molecular-wire systems have been studied within the framework of photoinduced charge separation and solar-energy conversion. Up front, the conductance behavior of wire-like molecules was of particular interest. Such features have been carefully examined in view of possible applications in the fields of molecular electronics and/or photovoltaic devices. Among the tested systems, 7t-conjugation played a crucial role. 

The close correspondence of experimental results with the relative ordering of the various excited states as derived from the Weller equation shows the strength of this approach in explaining the discrimination between photoinduced energy and charge transfer in conjugated oligomer-fullerene dyads. 

C28 molecule was first oriented toward a top layer single As dimer with the a, [3, y, 8 orientations, respectively, followed by energy minimization of the structures. In all cases, cycloaddition reactions take place and strong covalent bonds are formed. Substantial molecular structural and lattice relaxations occur. The calculated adsorption energies and charge transfer are shown in Table 15-2. 

Understanding energy and charge transfers in electronically excited molecules is of fundamental importance to photochemistry and photobiology. Traditionally, excited-state dynamics of organic molecules are described in terms of the low-lying tttt and... 

H. Akamatu, in Energy and. Charge Transfer in Organic Semiconductors (K. Masuda and M. Silver, eds.), Plenum Press, New York, 1973, pp. 3-4. 

Yoshino, K., Kaneto. K., and Inuishi, Y., in Energy and Charge Transfer... 

K. Masuda, M. Silver, lids. Energy and Charge Transfer in Organic Semiconductors (Plenum New York, 1974). 

Arnold and Wong [555] have reported that the oxidation potentials of cis and trans-1,2-diphenylcyclopropanes have simple linear correlations with both their ionization energies and charge transfer adsorption energies with tetracyanoethylene as an acceptor. Similar correlations have been observed in cis- and ra/z5-2,3-diphenyloxiranes. 

This work explored whether supersensitization of electron transfer could be demonstrated in a monolayer assembly. We also studied the properties of excited cyanine dyes, the class of compound used almost exclusively as photographic spectral sensitizers (26). Kuhn, Mtfbius, and co-workers have demonstrated the detailed information that can be gained on energy and charge-transfer properties through the use of monolayer assemblies of such dyes (23, 27). We emphasized investigations of cyanine dye... 

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