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 20 of 89 for “"First-Row"”.
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Fluorocarbene, Fluoroalkyl, and Fluoride Complexes of First-Row Transition Metals
… of acyl chlorides, demonstrating the first example of a cobalt(III) catalyzed fluorination reaction. The effects of the various ancillary ligands on these cobalt catalysts are investigated using high-throughput experimentation technology, and the scope of the reaction is expanded to …
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C(sp3)-H aminations under first row transition metal catalysis
… small molecule iron and manganese catalysts were first explored for metallonitrene-mediated C—H amination reactions, the majority of synthetic advances in the field have been with noble metal dirhodium carboxylate catalysts. These catalysts are highly reactive and have collectively displayed the …
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Solvent extraction of first-row transition metals by thiosubstituted organophosphinic acids
… comparison of the solvent extraction behavior of first-row transition-metal ions from manganese to zinc in acidic sulfate solution by these reagents is reported. Distribution coefficients shift to lower pH with increasing sulfur substitution of the extractant, the greatest effect being observed …
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Bio-inspired first-row transition metal complexes for small molecule activation
… inorganic systems. Our lab has recently designed first-row transition metal complexes bearing secondary coordination spheres. Such complexes have been designed to: 1) be tautomerizable to traverse between hydrogen bond donating and accepting within the secondary coordination 2) facilitate …
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Synthesis and Electrocatalytic Properties of Structure Engineered First-Row Transition Metal Derivatives
Hydrogen is a green energy carrier, producing only water when combusted, and a hydrogen economy has been considered the ideal green economy for human society. Water electrolysis can produce high-purity hydrogen on a large scale, and if the electricity used in water electrolysis is obtained from …
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Shining light on the photoexcited states of first-row transition metal photocatalysts
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-05-01
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Metal-ligand cooperativity in first row transition metals: hydrosilylation catalysis and mechanistic insights
… and stability to air when compared to the 1st row counterparts of PGMs. However, 1st row late transition metals such as Fe, Co, and Ni offer the advantage of being low cost and earth abundant. This is especially critical when considering that catalyst recycling technologies do not exist for …
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Structural Studies of Halo and Aquohalo Complexes of First Row Transition-Metal Ions
Made available in DSpace on 2014-12-09T17:36:22Z (GMT). No. of bitstreams: 1 6915373.pdf: 3731607 bytes, checksum: e731fd3357028a31b14f18312322db9b (MD5) Previous issue date: 1969
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Activation of small oxygen containing molecules by bioinspired first row transition metal complexes
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-05-01
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Synthesis, characterization, and catalytic reactivity of first-row transition metal CCC pincer complexes
… from using less biocompatible second- and third-row transition metal catalysts and replace them with first-row transition metal catalysts. However, first-row metals tend to engage in one-electron radical chemistry much more readily than the typically desired two-electron reactions. One way to …
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New Chemistry For The Growth Of First-Row Transition Metal Films By Atomic Layer Deposition
<p>Thin films containing first-row transition metals are widely used in microelectronic, photovoltaic, catalytic, and surface-coating applications. In particular, metallic films are essential for interconnects and seed, barrier, and capping layers in integrated circuitry. Traditional vapor …
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FIRST ROW TRANSITION METAL OXIDES AS ELECTROCATALYSTS FOR ANION EXCHANGE MEMBRANE FUEL CELLS AND ELECTROLYZERS
Growing concerns regarding the energy crisis affecting the world and the environmental consequences of excess CO2 in the Earth’s atmosphere currently motivate a transition to renewable energy sources. However, energy storage and conversion devices are needed for renewables to challenge the …
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Variational Monte Carlo study of core-valence separation schemes for first-row atoms and positive ions /
… appropriately designed wave functions for the first-row atoms and positive ions. It is shown that the loss of antisymmetry with respect to interchange of core and valence electrons is a dominant effect which increases rapidly through the row, while the effect of core-valence uncorrelation is …
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The Characterization of The 2p X-Ray Photoelectron Spectra of First Row Transition Metal Element Compounds
Made available in DSpace on 2014-12-10T23:02:16Z (GMT). No. of bitstreams: 1 7514185.pdf: 2863544 bytes, checksum: ecaae09820d7568903b0d69d2c1c7d4f (MD5) Previous issue date: 1975
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Precursors And Processes For The Growth Of Metallic First Row Transition Metal Films By Atomic Layer Deposition
… thickness control due to the self-limiting growth mechanism. The microelectronics industry requires the growth of metallic first row transition metal films by ALD. Due to the positive electrochemical potentials, the ALD growth of noble metal thin films has been well developed in the past. By …
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Experimentally generated partition coefficients for the first-row transition elements during eclogite partial melting at three gigapascals
… provides measurements of the partitioning of the first-row transition elements (FRTE) between eclogite and melt, which could be used to fingerprint the source lithology of ocean island basalts (OIB) and infer participation of recycled lithologies in their generation. My simple forward melting …
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Sharing the Burden of Reactivity: Synthesis, Characterization, and Reactivity of Phosphino-Alkoxide First-Row Transition Metal Complexes
Bond activation is both central in many reaction mechanisms and essential to industrial production of chemicals. Many industries, such as pharmaceutical and petrochemical production, use precious metals to perform critical synthetic transformations that rely on bond activation. Due to the scarce …
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A Structural Study of Some (h6-Arene)ML2, First Row, Group VIII, Transition Metal Complexes and Their Derivatives
… bonding, and chemical properties. The first structural evidence for discrete complexes containing Ni-SiX3 bonds is (h6-mesitylene)Ni(SiCl3)2 and presented. The compounds (h6-toluene)Ni(SiF3)2, crystallize in space group P21/c with Z = 2. The lattice constants at 23° C are: a = 9.056(2), …
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