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Showing 1 to 16 of 16 for “"main-group elements"”.
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Stabilisation effects of ferrocenylalkyl groups on hydrides of heavier main group elements
New hydrides of heavier p-block main group elements with a ferrocenylalkyl moiety, Fc(CH₂)nEHm (Fc = (CpFeC₅H₄-); E = P, As, Si, Ge or Se; n = 1, 2, 4, 6 or 11; m = 1, 2 or 3) and FcCH₂P(R)H (R = CH₃, C₆H₁₁ or p-CH₂C₆H₄NO₂), have been synthesised and characterised. Although some precursors of the …
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Main Group Elements in Catalysis: Alkene/Alkyne Activation Using Organoaluminium(III)–Pyridyl Dimers
… py')]2 (R = Me, iBu; py'= substituted pyridyl group), which have been previously shown to be involved in a unique “pyridyl ring-flipping” (cis/trans isomerism) equilibrium. Five new dimers of the type [R2Al(2-py')]2 (R = Me, iBu; py' = substituted pyridyl group) with different substituents on …
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Bond length and bonded radii variations in sulfide molecules and crystals containing main group elements
… on 18 hydrosulfide molecules containing selected main group X-cations yield minimum energy bond lengths, R<sub>t</sub>(XS), that reproduce those observed in chemically similar sulfide crystals. A least-squares analysis shows that R<sub>t</sub>(XS) can be estimated by the equation R = …
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The Effects of Main Group Elements on Transition Metal Carbonyl Clusters (Tellurium, Assembly, Chalcogen, Sulfur, Ditelluride)
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1986.
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Design, Synthesis, and Characterization of Novel Phosphorus-Containing Conjugated Materials Based on Vat Orange 3
… Hydrocarbons (PAHs) or strategies that embed main group elements into carbon-based synthons, have all been aimed at this common goal. However, the development of PAHs and incorporation of heaver main group elements such as phosphorus have rarely intersected until recently. This marriage is …
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Probing Proteasome Inhibition By Metal Copmplexes As A New Route For Anticancer Therapy
… Selected metal ions ranging from transition to main group elements have been incorporated in various ligand systems containing phenolate and pyridyl donor sets. The mechanistic behavior of these complexes in solution has been thoroughly investigated along with their in vitro anticancer …
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Synthetic and catalytic studies of Group 11 N-heterocyclic carbene complexes
… structure and reactivity of two-coordinate Group 11 metal complexes, supported by N-heterocyclic carbene (NHC) ligands. The NHC ligand was found to stabilize monomeric, terminal fluoride complexes of copper, silver and gold, the last representing the first isolable gold(I) fluoride. These …
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Fluoroalkoxy-functionalized carbenes for main group and transition metal complexes
… for their applications as ligands for main group elements and transition metals and as sterically hindered Lewis bases for hydrogen activation. Chapter 1 reviews the background of carbenes as ligands for main group compounds and transition metal complexes. The history and development of …
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Harnessing Aluminum Radicals via Heterobimetallic Complexes for Small-molecule Activation
… radicals through ligand design and main-group/transition-metal heterobimetallic cooperativity, enabling aluminum to participate in single-electron processes traditionally associated with transition metals and f-block elements. A central theme of this work is the development of …
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Order Under Pressure: Structural and Magnetic Characterization at Extreme Stresses
… lever tunes the electronic structure of elements and changes the way that atoms arrange and coordinate to one another. These unique electronic configurations and coordination environments have profound impacts on the properties of materials giving rise to functionality ranging from …
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Design of Lewis Acidic Pnictenium Ions Using Carbone and Capping Arene Ligands for Bond Functionalization
… widely implemented to stabilize subvalent heavy group 15 element compounds. However, synthetic strategies to prepare Lewis acidic antimony and bismuth complexes remain underexplored. Cationization is one of the most common methods used to enhance the Lewis acidity of heavy group 15 elements by …
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Production of Chemicals from Air Through Electrocatalytic Nitrogen and Oxygen reduction
… recent research progress for the application of main group elements on NRR is firstly provided by investigating their interaction with N2 and the strategies for suppression of the undesired hydrogen evolution reaction (HER) (Chapter 2). This chapter provides a concise but comprehensive …
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Quantum Chemical Studies for the Engineering of Metal Organic Materials
… present an extension of MOM principles to the main group elements. The synthesis of ordered COFs is possible by using predesigned structures andcarefully selecting the building blocks and their conditions for assembly. The crystals formed by these systems often possess non-linear optical (NLO) …
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Synthesis and Characterization of Bimetallic Zintl Clusters and their Use in the Fabrication of Intermetallic Nanoparticles
… are explored. Zintl ions are polyanions of main group elements, primarily of the heavier elements of groups 14 and 15. The closo-Sn<sub>9</sub>Ir(cod)<super>3-</super>, Sn<sub>9</sub>Rh(cod)<super>3-</super>, and Pb<sub>9</sub>Ir(cod)<super>3-</super> ions were prepared from precursors …