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 “"sulfur donor"”.
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Synthesis and study of technetium(v) complexes of tetradentate nitrogen-, sulfur-donor ligands
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1992.
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Synthesis and chemistry of thione-iron carbonyl complexes
<p>The first examples of sulfur-donor ligand <i>ortho</i>-metallated complexes were obtained in good to excellent yields by reaction of various thiobenzophenones and a thiobenzoate with diiron enneacarbonyl in benzene at room temperature. The known trinuclear complex …
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High Pressure Liquid Chromatography Studies of the Reaction of Platinum Complexes with Peptides
… The affinity of platinum complexes to sulfur donor ligands of side chains of methionine and cysteine amino acids was assumed to be responsible for toxicity and resistance. Recently, it was found that the reaction of platinum complex with proteins containing sulfur donor ligands could …
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I The synthesis and coordination chemistry of novel 1,1,1-tris(aminomethyl)ethane (TAME) derived ligands and their use as size selective fluorescent zinc(II) sensors II The synthesis of strongly and weakly binding ligands with nitrogen, oxygen, and sulfur-donor groups to be used as receptors in fluorescent ratiometric indicators for transition metal ions
… to the target analyte from the polydentate N6-donor set was evidenced in the measured K d' of 1.4 fM for [Zn(TAMEisoquin)]2+. Unlike many reported sensors, the TAME-based chelators display excellent selectivity for Zn(II) over Cd(II). Moreover, the synthetic flexibility of the TAME podand for …
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Functional and mechanistic elucidation of peptide backbone thioamidation
… ThiS (ThiS-COSH), a proteinaceous sulfur donor, and enhances the affinity of YcaO towards the thioamidation substrate (chapter IV). My biophysical and mutational analyses of TfuA also uncovered its binding interfaces with YcaO and ThiS in addition to revealing a hydrolase-like …
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The Interplay Between Anions And Radicals In Synthesis, Spectroscopy, And Catalysis
… complexes, organic super-electron donors, CeIV–C bonds, and titanium photocatalysts. In all cases, reactive species were isolated and studied via a combination of single crystal X-ray diffractometry, electrochemistry, NMR spectroscopy, and reactivity. These studies were developed to …
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Genes from Arabidopsis involved in iron-sulfur cluster biogenesis
Iron sulfur [Fe-S] proteins are essential components of many major biological processes including electron transport, respiration, photosynthesis, hormone biosynthesis, and environmental sensing. The process of [Fe-S] cluster assembly in living cells is a controlled mechanism that is highly …
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Biosynthetic studies of lincomycin A, a thiosugar-containing natural product
… LmbM, LmbL/Z and LmbS, respectively. How the C-1 sulfur is incorporated into the highly decorated GDP-octose is the most intriguing question in the biosynthesis of lincomycin A. Sequence analysis of the lincomycin gene cluster showed the presence of a putative S-glycosyltransferase, which likely …
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1,2–Dithiolate Complexes of the Lanthanides and Actinides and High– Pressure Studies of f–Element Complexes
… can be increased by complexation with soft–donor ligands which increase orbital overlap and covalent bonding with actinide complexes in comparison to lanthanide complexes, leading to shorter bond distances and structural differences. Differences in lanthanide and actinide bonding can also be …
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Reaktionen elektrophiler und nucleophiler Schwefeldonoren mit cyclischen Alkenen und Alkinen
… elektrophiler und nucleophiler Schwefeldonoren mit cyclischen Alkenen und Alkinen untersucht, wobei ungewöhnliche und neuartige Schwefelchemie aufgedeckt wurde. Als elektrophile Schwefeldonoren wurden ein Sulten und ein Thiophenendoperoxid eingesetzt. Als Schwefelakzeptoren standen die …