Molecular and Polymeric Systems

Orientation of molecules can normally be detected using polarized light in either transmission or scattering experiments. The prediction of the observed effect (birefringence or dichroism, for example) requires a description of the basic light-matter interaction combined with a calculation of the distribution of orientations associated with the individual molecules or segments of molecules. 

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H. D. Abruna, in Electroresponsive Molecular and Polymeric Systems, T. A. Skotheim, ed., Marcel Dekker, New York (1991) pp. 97-171. 

Abruna HD (1988) In Stotheim TA (ed) Electroresponsive Molecular and Polymeric Systems. Dekker, New York 1 97... 

Soos ZG, Hayden GW (1991) In Skotheim TA (ed) Electroresponsive molecular and polymeric systems. Marcel Dekker, New York, p 197... 

Due to our limited ability to generate well-defined defects, a detailed exploration of the trapping process has not been conducted to date. However, a large number of molecular and polymeric systems have been studied and follow quantitatively the theory of nonradiative relaxation based on the above principles. The trapping rate should follow the relation for nonradiative relaxation of molecular states (Siebrand, 1967 Bixon and Jortner, 1968)... 

Skotheim received his B.S. in physics from the Massachusetts Institute Technology and Ph.D. in physics from the University of California at Berkeley (1979). He is the editor/coeditor of the Handbook of Conducting Polymers (first and second editions, Marcel Dekker) and Electroresponsive Molecular and Polymeric Systems (Marcel Dekker), the author of more than 300 publications and more than 70 patents. He can be reached at terje.skotheim intexworld.com. 

First synthesized by Deuschel in 1951 via dehalogenation of 23 (Scheme 27) [26], 6,12-dihydroindeno[l,2-h]fluorene (26) can be viewed as a planarized p-terphenyl derivative. As a result of the enforced geometry, there is greater cmijugation between the phenyl rings, which imparts more desirable emissive properties thus, this core unit has been utilized in a wide variety of molecular and polymeric systems — far too many to be reviewed here. Rather, selected, salient examples will be presented. 

Entwistle, C. D. Marder, T. B. 2002. Boron chemistry hghts the way Optical properties of molecular and polymeric systems. Angew. Chem., Int. Ed., 41 2927-31. 

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