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 10 of 10 for “"Diphenylphosphine"”.
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Reactivity of rhodium-heteroatom bonds: from catalytic bond activation to new strategies for olefin functionalization
… to effect hydrophosphinylation of 1-octyne with diphenylphosphine oxide with high regioselectivity but moderate yields in comparison with Wilkinson's catalyst [C1Rh(PPh3)3]. [Tp*Rh(PPh3)2] was further shown to effect hydrophosphinylation of a range of aromatic and aliphatic alkynes with …
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The development of palladium-catalysts for organic synthesis
… and with 2- (2',4',6'-triisoprc'pylbiphenyl)-diphenylphosphine is presented that is informative in determining the relative importance of ligand bulk and electron-donating ability in the high activity of catalysts derived from ligands of this type. Further, when the aryl bromide becomes too …
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The Reactivity of Ditetrelenes Towards Organophosphorus Oxides
… OP(pentyl)2 moiety of 32 and an OPPh2 group from diphenylphosphine oxide was discovered and insights into the mechanism of this exchange were obtained.
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The chemistry of gold with unsaturated organics: coordination, activation and catalysis
… gold(I) complexes containing a (o-sulfophenyl)- diphenylphosphine ligand were formed, with the supporting Cl- and R2S ligands on gold(I) found to be non-labile, resulting in the complexes being catalytically inert. The incorporation of anions to [(C6F5)4Au2Ag2]n clusters gave structural and …
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Rhodium-zeolite hydroformylation of propylene
… The rhodium carbonyls were reacted with n-hexyl diphenylphosphine to determine rhodium locations. Rh(CO)₂(O<sub>z</sub>)₂-NaY was located at the surface while the other two species were located within the zeolite cages. One dicarbonyl species, Rh(CO)₂(O<sub>z</sub>)₂-NaX, was observed on NaX. It …
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Synthesis and analysis of low-valent NHC supported nickel complexes
… [(IDipp)Ni)]2(μ-OMe)(μ-OTf) with (trimethylsilyl)diphenylphosphine. We also show that (IDipp)Ni(C6H6) reacts with acyl fluorides to form the corresponding [(IDipp)Ni(R)(μ-F)]2 complexes. Lastly, we show that sodium naphthalenide can reduce [(IDipp)Ni(μ-Cl)]2 to form a synthetic equivalent of …
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Synthesis and catalytic evaluation of chiral ferrocenyl p^p and p^n palladium(II) complexes
… similarly to ligands 3a and 3b using lithium diphenylphosphine. Disappointingly, scaffold 4 was obtained in yields less than 10%. Furthermore, it could also not be reduced to the required intermediate (η5-C5H5)Fe(η5-C5H4)C*H(OH)(PPh2) 4-OH as it was the case for 3a and 3b. The alternative …
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Heavy-metal-free colloidal nanocrystal heterostructures – synthetic chemistry and growth mechanisms
… shell. In addition, highly reductive ligand (diphenylphosphine) can further increase the PL QY presumably by filling surface electron trap states.
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Doping of group IV semiconductor nanowires
As Moore’s Law predicted in the 1960s, advancements in technology have led to an exponential increase in the numbers of transistors required per square inch of integrated circuits, leading to an ever pressing need for smaller transistors. In turn, there is a need for novel transistor architectures …