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Showing 1 to 17 of 17 for “"zinc complexes"”.
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Synthesis And Catalytic Studies Of Zinc Complexes Of Amido-Oxazolinate Ligands
… primarily focuses on the fundamental study of zinc complexes of amido-oxazolinate ligands that have shown a great deal of promise in their ability to catalyze various polymerization reactions. A family of new C1-symmetric, monoanionic, amido-oxazolinate ligands containing oxazoline moiety has …
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SUSTAINABLE CATALYSIS VIA IRON AND ZINC COMPLEXES: FROM TUNABLE METALLATE SYSTEMS TO PHOTOCHEMICAL REACTIVITY
This thesis investigates the use of iron and zinc complexes as sustainable catalysts for transformations of small, strained heterocycles in the field of carbon dioxide valorization, as well as the synthesis of iron complexes as catalysts for photochemical oxidation. In the first part of the work, …
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(I) Zinc complexes as synthetic analogues for carbonic anhydrase and as catalysts for H₂ production and CO₂ functionalization . . .
… hydroborato). A wide range of [Tptm] zinc complexes have been synthesized, enabling a diverse range of both stoichiometric and catalytic chemical transformations including the production of H₂ and the functionalization of CO₂. The [Tptm] ligand has been used to isolate the first …
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Design of new tripodal ligands to advance the biomimetic Zinc chemistry
… synthesis of a ligand system which coordinates zinc with the same features as those showed by the enzymes. This ligand was to be water soluble, was to form a hydrophobic cavity around zinc and was to provide additional functional groups with hydrogen bonding properties. Several zinc complexes of …
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Synthesis and Evaluation of New Antimicrobial Agents and Novel Organic Fluorophores
… a new family of pyrazole ligands, their zinc(II) complexes and to evaluate their antmicrobial activity. The overall goal was to improve the antimicrobial activity of both ligand and metal salt through the formation of the corresponding zinc complex. The first pyrazole ligands synthesized …
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Studies towards degradable polymers new zinc (II) and palladium (II) complexes as catalysts for lactide polymerization and carbon monoxide
In this study a range of new zinc and palladium complexes were synthesized, characterized and used in the production of degradable polymers. Zinc complexes were used for the production of polylactides (PLAs) functionalized with a drug candidate on a polymer tail. These functionalized polymers …
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ΣΥΝΘΕΣΗ ΚΑΙ ΜΕΛΕΤΗ ΤΗΣ ΔΟΜΗΣ ΕΝΩΣΕΩΝ ΣΥΝΑΡΜΟΓΗΣ 3-ΑΡΟΥΛΟΔΙΘΕΙΟ- ΚΑΡΒΑΖΙΔΙΚΩΝ LIGANDS ΜΕ ΤΑ ΙΟΝΤΑ ΝΙ(ΙΙ), CO(II), ZN(II) ΚΑΙ CR(II)
… COMPLEX OF NICKEL (II), COBALT (II), ZINC (II) AND CHROMIUM (III), HAVE BEEN PREPAREDAND CHARACTERIZED BY ELEMENTAL ANALYSES, MOLECULAR WEIGHT DETERMINATION, MAGNETIC AND SPECTROSCOPIC TECHNIQUES. THE SIX COORDINATED POLYMERIC COMPLEXES (NIL2)N ARE OCTAHEDRAL AND CONSIDERED TO INVOLVE …
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Zinc enzyme model complexes with Ligands containing a N2S Donor Set and their methylating reactions
… have been used for the syntheses of 47 new zinc <br>enzyme model complexes. These complexes have been characterized and compared <br>by IR and NMR spectroscopy, 14 of them with single crystal structure analysis. <br>9 of the mononuclear tetrahedral N2S2 coordinated zinc complexes have been …
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Polar Tris(pyrazolyl)borates for the modeling of Zinc metalloenzymes in aqueous solution
… hydrophilic nature in the catalytic activity of zinc metalloenzymes. The zinc complexes of novel poly(pyrazolyl)borate ligands bearing polar substituents on the 3-position of the pyrazoles were expected to contribute to this. These comprise the carboxyester substituted BpC(O)OR,Me (R = Me, Et), …
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Complexation of divalent copper, zinc and calcium ions by phosphate esters in aqueous solution
… and fluorotriphosphate with protons, copper, zinc and calcium ions were determined by potentiometry. In addition, the complexation of 1-naphthyl phosphate, 8-quinolyl phosphate and 8-quinolyl methyl phosphate with nickel and cobalt ions was also studied. Protonation enthalpies and copper …
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Synthesis of Macrocyclic Polyamines and their Cu, Fe, Mn and Zn Complexes Targeting HIV (AIDS).
… <bold>SH21</bold>, <bold>SH23</bold>) and zinc (<bold>SH36</bold>, <bold>SH39</bold>) complexes. Moreover, synthesis of twelve previously reported compounds of biological interest is reported including macrocyclic polyamines and their copper, iron, manganese and zinc complexes …
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Ultrafast extreme ultraviolet spectroscopy of transition metal dithiolate coordination complexes
… in a series of transition metal dithiolate complexes. The behavior of these molecules after absorption of light has implications for the development of catalysts and photosensitizers using earth-abundant transition metals. The cobalt dithiolene complex, [Co(bdt)2]- (bdt = …
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Synthesis and Reactivity of Low Valent Main Group Element Complexes
… with RS–SR and R2P–PR2 bonds. All novel aluminum complexes were characterized by spectroscopic methods and X-ray diffraction analysis for the majority of them. Activation of the C=S or P=S bonds in a thiourea or phosphine sulfide, respectively, was accomplished by III-1 to give the first examples …
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Metal complexes with biological activity
… of cisplatin, the research focused on metal complexes less toxic, more effective and that exploit synergistic effect when used in combination. In this work I studied new copper, zinc and vanadium complexes with biological activity. I tested in vitro the studied compounds alone and in …
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Modellkomplexe für zinkhaltige Hydrolasen mit Schwerpunkt auf der ß-Lactamase
Im ersten Teil dieser Arbeit wurde im Rahmen der bioanorganischen Modellkomplexchemie die Reaktivität von Tris(pyrazolyl)borat-zink-hydroxid-Komplexen (TpZnOH) gegenüber ß-Lactamen und das Koordinationsverhalten von TpZn-ß-Aminosäurekomplexe im Hinblick auf biologisch relevante Zwischenstufen im …
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Disponibilidad y efectividad relativa de quelatos de zinc aplicados a suelos en un cultivo de lino (Linum usitatissimum L.) textil
… de micronutriente lábil en los suelos. SUMMARY Zinc fertilizers are habitually applied to numerous agricultural crops of agricultural soils. Zinc sulphate (ZnSO4) is one of most common micronutrient sources, but the formulas of organic origin are used more and more to correct the deficiencies of …