Sökning: "Organic phosphorus"
Visar resultat 21 - 25 av 133 avhandlingar innehållade orden Organic phosphorus.
21. Low-Coordinate Organopnictogens : Synthesis and Optoelectronic properties
Sammanfattning : This thesis work is based on the development of novel organopnictogen compounds and the exploration of their potential applications in organic electronics. In particular, incorporation of phosphorus and arsenic into π-conjugated systems is known to modify the optoelectronic properties. LÄS MER
22. Characterization of Organic Phosphorus in Aquatic Sediment
Sammanfattning : .... LÄS MER
23. The potential of wetlands for mitigation of eutrophication and brownification
Sammanfattning : Increasing nutrient concentrations (eutrophication) and water color due to dissolved organic matter (brownification) pose continuous threats to freshwater ecosystems worldwide, threatening ecosystem services like drinking water supply. Changing the increasing trends of eutrophication and brownification on our aquatic ecosystems is challenging. LÄS MER
24. C–H activation through late transition metal cyclometallation. Addressing selectivity and reactivity problems
Sammanfattning : The ligand-directed C—H activation relies on a coordinating donor atom being in proximity to the C—H bond activated. Cyclometallation of 2-(1-naphthyl)-pyridine – a substrate containing both γ- and δ-positions in proximity to the directing nitrogen atom – was studied. LÄS MER
25. Synthesis and Applications of P-Chirogenic and Axially Chiral P,N-Phosphines as Ligands and Organocatalyst
Sammanfattning : This thesis deals with the enantioselective synthesis of chiral mixed phosphorous/nitrogen compounds and some of their applications in asymmetric synthesis. For the most part, the compounds are P-chirogenic, with the chirality centered on the phosphorous atom. The last part of the thesis deals with axially chiral phosphoramidites. LÄS MER
