Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 3 of 3 for “"Di-pi-methane-rearrangement"”.
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Photochemical Rearrangements of Tetraarylborate Salts: Direct Irradiation, Triplet Sensitization, and Single Electron Transfer
… tetraarylborate salts has been investigated by direct irradiation, triplet sensitization and under single electron transfer conditions. Irradiation of sodium tetraphenylborate at 254 nm in either acetonitrile or THF produces 2,7,7-triphenyl-7-boratabicyclo (4.1.0) hepta-2,4-diene. The …
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The design and synthesis of polymeric assemblies for materials applications : chemosensing, liquid crystal alignment and block copolymers
Conjugated polymers are an indispensable class of materials that have advanced the development of optoelectronic device architectures; in part, due to their outstanding electronic and mechanical properties. This thesis explores the utility of rationally designed energy transfer cascades involving …
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Untersuchungen zur Typ-, Regio- und Stereoselektivität bei Norrish-Typ-II-Yang-Cyclisierungen und Di-Pi-Methan-Umlagerungen in organisierten Medien
Gegenstand der vorliegenden Arbeit ist die Untersuchung der Typ-, Regio- und Stereoselektivität photochemischer Reaktionen in organisierten Medien. Es wird anhand ausgewählter Beispiele gezeigt, daß bei der Festkörperbestrahlung von kronenetherverknüpften Substraten sowie von photoaktiven …