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Showing 1 to 20 of 163 for “"Copper(II)"”.
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Structural studies of some copper(II) coordination compounds
… structures of four coordination compounds of copper(II) have been investigated by three-dimensional X-ray methods. The structure of one crystalline form of bis-(N-ethyl-salicylaldiminato) copper(II) has revealed that the copper atom in such a compound may adopt a tetrahedrally-distorted …
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Magnetic Exchange in Five-Coordinate Copper(ii) Systems
Made available in DSpace on 2014-12-13T20:10:28Z (GMT). No. of bitstreams: 1 7913386.pdf: 6580831 bytes, checksum: 08ab90eba8a158ab45b5843d2984afa5 (MD5) Previous issue date: 1978
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Investigation of copper(II) complexes: I Copper(II) complexes of tryptophan and its analogues as postcolumn interaction components for indirect fluorescence detection of amino-containing analytes II High-performance liquid chromatographic separation of copper(II) azamacrocyclic complexes
… phase of this project investigates the use of copper(II) complexes of tryptophan and its analogues for indirect fluorescence detection in high-performance liquid chromatography. First, indirect photometric and fluorometric detection in high performance liquid chromatography (HPLC) is reviewed, …
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Liquid Crystalline Copper(II) Complexes of Poly(propylene imine) Dendrimers
… from 1st to 5th generation as ligands and copper(II) as paramagnetic centres have been synthesised. The dendrimeric complexes were prepared by coordination of copper(II) to the corresponding ligands. The maximum loadings (average number of copper centres per dendrimer) reached for …
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Extraction study of cadmium (II) and copper (II) using Aliquat 336
… on the investigation of the extraction of Cd(II) and Cu(II) from hydrochloric acid solutions using Aliquat 336 in Shellsol A B solvent and Aliquat 336/PVC membranes. In the solvent extraction study, factors that affect the extraction rate, such as the extractant concentration in the organic …
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Investigations into cyclopropanation and ethylene polymerization via salicylaldiminato copper (II) complexes
… chapter addresses diastereoselective homogeneous copper catalyzed cyclopropanation reactions. Cyclopropanation of styrene and ethyl diazoacetate (EDA) is a standard test reaction for homogeneous catalysts. Sterically bulky salicylaldimine (SAL) ligands should select for the ethyl …
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Field Gradients and Quadrupole Coupling Constants of Copper (Ii) and Vanadyl Complexes
Made available in DSpace on 2015-05-12T22:35:26Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7212219.PDF: 1840118 bytes, checksum: 5695491af3efa7bcbe8d53035d221e08 (MD5) Previous issue date: 1971
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Magnetic Exchange Interactions in Copper(ii) Complexes Propagated by Extended Bridging Groups
Made available in DSpace on 2014-12-13T20:10:31Z (GMT). No. of bitstreams: 1 7913450.pdf: 15299194 bytes, checksum: c129dafd0d89557b350ee995214b3bef (MD5) Previous issue date: 1978
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Development of dermally absorbed copper(ii) complexes as potential anti-inflammatory drugs
… of the world's population and there is no cure. Copper(II) complexes have been reported to have anti-inflammatory activity and alleviate the symptoms associated with the disease. The present study focuses on the design of new drugs that could be used to change the bioavailability of copper(II) …
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Two Methodologies in Pursuit of the Elucidation of Copper (II)—Centered Bioinorganic Chemistry
Copper is a widely distributed transition metal in the earth's crust and has been adopted in a variety of biological systems. In many ways the biochemical usefulness of copper stems from its positive redox potential. This positive redox potential allows copper to assist in the movement of …
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Determination of Conditional Stability Constants of Copper(ii) Complexes With Naturally Occurring Macromolecules
… measurements were made) for the reactions of Cu(II) with humic acid showed that values of log K* (apparent K) were lowest when calculated by either the Hill plot method (linear form) or by the Bjerrum plot method (where the metal is assumed to be the central group), as compared to the Scatchard …
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Electron Paramagnetic Resonance Study of Bonding in a Low-Symmetry Copper(ii) Chelate
Made available in DSpace on 2014-12-09T17:36:16Z (GMT). No. of bitstreams: 1 6910801.pdf: 3250411 bytes, checksum: 1ea47aeaaef4401c58f7bb2d2e1ed634 (MD5) Previous issue date: 1968
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Characterization of tetranuclear manganese complexes and thermochromic copper(II) and nickel(II) complexes
… for the oxygen evolving complex of photosystem II are examined. The complexes, based upon x-ray crystallography are cubane like structures containing a single manganese ion with a +4 oxidation state and three manganese ions with an oxidation state of +3. Based upon magnetic susceptibility …
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Poly(amide acid) infusion with Copper(II) Chloride to form polyimide microcomposite films
Polyimides are well known for their high thermal stability, chemical inertness, and their high electrical resistance. These properties make them ideal for use in the aerospace and electronics industries. Often polyimides are modified by coating or doping the films with metal species to change the …
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Electron Paramagnetic Resonance Studies of Copper(ii) Complexes. Part I: Quadrupole Coupling Constants of Square Planar Copper(ii) Complexes. Part Ii: Simulation of Electron Paramagnetic Resonance Spectra of Powders. Part Iii: Effects of the Nuclear Quadrupole Interactions on the Electron Paramagnetic Resonance Spectra of the Triplet State of Copper(ii) Dimers
Made available in DSpace on 2014-12-13T20:09:49Z (GMT). No. of bitstreams: 1 7607011.pdf: 3555309 bytes, checksum: 1dd70c35d1e9564576f79890e0bb3b0f (MD5) Previous issue date: 1975
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Ratiometric copper(II) indicators based on poly(n-isoproprylacrylamide) and fluorescence resonance energy transfer
… to ratiometric fluorescence detection of Cu(II) ions was devised by copolymerizing N-isopropylacrylamide with small percentages of bipyridine and amine monomers. The copolymer was divided into two portions. The amine group on one portion was functionalized with AlexaFluor555 (donor …
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Chromatographic studies and analytical methods development for selected tetraazamacrocycles and their copper(II) complexes
<p>Cu(II)-azamacrocyclic complexes are of current interest due to their potential application as copper-64 radioisotope-based imaging and therapeutic agents. The development of separation conditions is important in evaluating their purity as well as assessment of their physical properties including …
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Crystal Structure Determination, Spectra and Bonding of Bis-(3-Phenyl-2,4-Pentanedionato)copper(ii)
Made available in DSpace on 2014-12-09T17:35:20Z (GMT). No. of bitstreams: 1 6604153.pdf: 2841705 bytes, checksum: fb43d11c02bf2d16d420b62a23a46587 (MD5) Previous issue date: 1965
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High-pressure studies of solid state reactions in organometallic copper(II) and nickel(II) systems
… of isomerization reactions in organometallic copper(II) and nickel(II) complexes. Electronic absorption spectroscopy is used to assess configuration and changes in configuration induced by pressure. Pathways for solid state isomerizations reactions are discussed. Studies of polycrystalline …
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