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 5 of 5 for “"open coordination site"”.
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Palladium-catalyzed C-N cross-coupling reactions toward the synthesis of drug-like molecules
… a morpholine capable of occupying palladium's open coordination site during its catalytic cycle. A final C-N bond formation study focuses on the cross-coupling of aryl halides with amidine salts. For this cross-coupling, a methodology has been developed that can be applied to various …
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C-H activation: oxidative addition to an iridium(I) center and reactivity of the resulting iridium(III) species
… to remove the chloride ligand to provide an open coordination site. Complex (I) and 3,3-dimethyl-1-butyne, produced a 1,4-di-t-butyldienyl complex (VIII) by a double insertion of the alkyne with one t-butyl group forming an agostic interaction with iridium. Deuterium labeling experiments …
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Incorporation of cyanide ligands into models of [FeFe]- and [NiFe]-hydrogenase
… enzymes are bimetallic with FeFe or NiFe active sites. The metals of the active sites are bound to carbonyl and cyanide ligands with the metal centers bridged by thiolates. The use of inexpensive and readily available elements by hydrogenase enzymes has been a driving force for the development of …
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Small molecule mimics of hydrogenase enzymes: synthesis, protonation, and electrocatalysis
… as well as the reverse reaction. The active sites of the two most prevalent hydrogenases contain NiFe or FeFe cores, bound to thiolates, cyanide, and carbon monoxide ligands. These enzymes are also rich in Fe-S clusters to allow the necessary redox chemistry of hydrogen oxidation and …
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Investigations into cyclopropanation and ethylene polymerization via salicylaldiminato copper (II) complexes
Two distinct overall research objectives are in this Master’s thesis. Very little relates the two chapters apart from the ligands. The first chapter addresses diastereoselective homogeneous copper catalyzed cyclopropanation reactions. Cyclopropanation of styrene and ethyl diazoacetate (EDA) is a …