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 8 of 8 for “"4-coordinate"”.
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O-O bond formation and the transition metal chemistry of [beta]-diketiminate, siloxide, and triamide ligands
… ligands were used to generate a series of 4-coordinate Cr, Mn, Fe, and Co complexes, but these could not support the corresponding high valent oxo species. Instead, a remarkably stable 4-coordinate Crv tetrasiloxide complex was isolated. Chelating triamide ligands were explored, which might …
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Bond length and bonded radii variations in sulfide molecules and crystals containing main group elements
… bonded to highly electronegative atoms like 4-coordinate As and larger (1.67Å) when bonded to a considerably less electronegative atoms like 4-coordinate Li but is smaller than Shannon's (1.70Å) crystal radius and Pauling's ionic crystal radius (1.84Å).
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LEEDS studies of adsorbate-induced reconstruction of metal surfaces
… closely with the predicted value of 1.82 A for 3-coordinate 0 on Ni, and the surface relaxations have been confirmed in a subsequent study with SEXAFS. Nitrogen, activated by an ion gun, chemisorbs on the Cu(110) surface to form Cu(110)-(2x3)-N. Many techniques have been applied to study this …
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INVESTIGATIONS INTO RARE 3-COORDINATE PALLADIUM COMPLEXES AND NEW APPLICATIONS OF COPPER IN COUPLING REACTIONS
… We started with looking into the synthesis of 3-coordinate palladium complexes incorporating a nacnac ligated system for academic interest. We utilized [{2,6-iPr2Ph)2nacnac}PdCl]2 as the precursor into synthesizing these 3-coordinate palladium complexes. Through many failed attempts of …
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Z-selective olefin metathesis processes and Cis/syndioselective ROMP with high oxidation state molybdenum alkylidenes
… to be controlled by the configuration of the 4-coordinate metal center, which alternates with each insertion of monomer. Chapter 4: Racemic 2,3-dicarbomethoxynorbornene (rac-DCMNBE) is polymerized by Mo(NAd)(CHCMe 2Ph)(pyr)(HMTO) (Ad = 1-adamantyl, pyr = pyrrolide, HMTO = hexamethylterphenoxide) …
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Photophysical studies of silver(I), platinum(II), palladium(II), and nickel(II) complexes and their use in electronic devices.
This dissertation deals with two major topics that involve spectroscopic studies of (a) divalent group 10 metals and (b) silver(I)-phosphine complexes. The scope of the work involved the delineation of the electronic structure of these complexes in different environments and their use in electronic …
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Electrically Polarised Electrodes in DMSO and DMF electrolytes of Pseudohalide Salts: In situ IR studies supported by EXAFS/XANES and other techniques
… coordination geometry containing solvent and one coordinated pseudohalide ion, and formed green-yellow solutions. X-ray absorption near edge spectroscopy (XANES) and extended X-ray absorption fine structure (EXAFS) were used to obtain direct information on the coordination state of …
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Study of the ligand effects on the metal-ligand bond in some new organometallic complexes using FT-Raman and -IR spectroscopy, isotopic substitution and density functional theory techniques
… and -phosphides which were synthesized by D-4, coordinate the R2Al+ fragment via both ring nitrogen atoms. This already suggests that the charge density in the anions is coupled into the rings and accumulated at the ring nitrogen atoms, but the Lewis basicity of the central nitrogen atom in …