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Showing 1 to 20 of 56 for “"coordination complexes"”.
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Functionalized Dipyrrins as Ligands for Photoactive Coordination Complexes
… a concept for the synthesis of metal and boron complexes, based on the dipyrromethene structure, is presented. Specifically, meso-substituted dipyrromethanes and dipyrromethenes (dipyrrins) have been used for the synthesis of these complexes. The pentafluorophenyl and the 4 fluoro-3-nitrophenyl …
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Magnetically Interesting Coordination Complexes Based on Macrocyclic Ligands
The synthesis and study of select 3d and/or 4f coordination complexes prepared from crown ether and Schiff-base dual compartmental macrocycles are described herein, working towards the discovery and study of new families of macrocyclic-based single molecule magnets (SMMs). Chapter 1 introduces the …
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Synthesis and Coordination Complexes of Bis-Pocket Siloxyporphyrins
A high yield synthetic route for an alkylthiolate-tailed bis-face protected iron porphyrin was developed. The high stability of this compound is likely due to the protection from the siloxy pocket around the thiolate tail. Very similar rhombic, high spin EPR spectra for this model compound and the …
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An Organometallic Approach to Iron Triazacyclononane Coordination Complexes
The active site of NiFe hydrogenase features a bis(thiolate) bridged nickel-iron site, where the iron is bound to two carbonyls and a cyanide. The reaction of the square planar Ni(N2S2), where (N2S2)2- = -SCH2CH2N(Me)CH2CH 2N(Me)CH2CH2S- and (Me 3TACN)FeCl2 gives [Ni(N2S2)FeCl(Me3TACN)](BPh 4), a …
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Trispyrazolylborate and Tetramethylcyclopentadienyl Osmium Chemistry: Toward Methane Coordination Complexes
Treatment of H2OsBr6 with 4 equiv. of tetramethylcyclopentadiene (C5Me4H2) in tert-butanol affords [(C 5Me4H)2OsBr]2[Os2Br 8]. The brown color of the salt suggests that the anion adopts an eclipsed conformation (D4h symmetry) and this conclusion has been confirmed by a single-crystal X-ray …
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Toward charge separation through conformational control in copper coordination complexes
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-08-01
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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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STRUCTURAL AND LUMINESCENT APPLICATIONS OF FUNCTIONALIZED SELF-ASSEMBLED SUPRAMOLECULAR COORDINATION COMPLEXES
… and platinum (II) self-assembly supramolecular coordination complexes. The exploration of interlocked structures provided an effective way to reveal the secretes of biologic self-assembly in nature. Meanwhile, to explore real biological world by microscope, heterobimetallic complexes as …
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Time-of-Flight Mass Spectrometry to Characterize Inorganic Coordination Complexes and Cyanobacteria
… (MALDI-TOFMS) is used to study several inorganic coordination complexes and a variety of compounds from cyanobacteria. Also presented is a discussion of TOFMS instrumentation and the improvements in resolution and instrument automation that have lead to widespread and diverse applications of …
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Non-Aqueous Coordination Phenomena. Coordination Complexes of Hexamethyl Phosphoramide and Other Oxygen Donors
Made available in DSpace on 2014-12-05T19:38:19Z (GMT). No. of bitstreams: 1 6402873.pdf: 3022011 bytes, checksum: 0a333c5908262f663252cea6b12d68c1 (MD5) Previous issue date: 1963
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Development of Two Novel Families of Platinum(Ii) Coordination Complexes for Nucleic Acid Recognition
… novel G4 binders based on a platinum(II) coordination platform with high G4 affinity, with the future goal of assessing their G4-recognition and stabilization abilities. The first family of novel complexes contains an aromatic platform functionalized with moieties that could potentially …
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Probing Base Metal Coordination Complexes Using Electrospray Ionization Quadrupole Time-of-Flight Mass Spectrometry
… research has been completed focusing on metal coordination complexes in the liquid phase but very little in terms of the gas phase. The purpose of this research is to further investigate these conditions and learn more about the reactions that can occur using Electrospray Ionization Quadrupole …
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STRUCTURE AND PROPERTIES OF NOVEL ENERGETIC COORDINATION COMPLEXES AND THEIR POTENTIAL AS MAGNETICALLY SWITCHABLE EXPLOSIVES
… ligands were used to synthesize novel energetic coordination polymers with good oxygen balance. These complexes were studied with magnetometry experiments to probe the use of these materials as magnetically switchable explosives. Lastly, methylammonium salts were investigated for use as bridging …
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Ultrafast photophysics of transition metal coordination complexes studied with femtosecond extreme ultraviolet transient absorption spectroscopy
… metal-specific ultrafast relaxation mechanism of coordination complexes, complementing information gained from ligand-specific techniques such as optical transient absorption. The experimental apparatus for transient absorption pump-probe XANES of molecular thin films is described in detail. The …
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The design and synthesis of new transition metal coordination complexes as potential anti-malarial agents
New Rh(I), Rh(III), Ir(III) and Pd(II) coordination complexes bearing 1,10-phenanthroline (phen) or 2,2'-bipyridyl (bipy) ligands have been investigated for potential anti-malarial activity.
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Towards Multifunctional Materials based on Coordination Complexes of Sulfur-Containing Diarylazo and Cucurbit[6]uril Ligands
In this thesis, the coordination chemistry of two families of ligands are explored, working towards the discovery of new multifunctional materials. The first project focuses on the coordination chemistry of sparsely reported redox active sulfur-bearing diarylazo ligands. Homoleptic complexes with …
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The Effect of the Secondary Coordination Sphere on the Stabilities of Cerium(III) and Cerium(IV) Coordination Complexes
… the lanthanide bonds, the use of the secondary coordination sphere about lanthanide complexes, including alkali metal cations lithium, sodium, and potassium, as well as hydrogen bonding guanidinium cations, as a framework to guide lanthanide-ligand bonding interactions was studied. This work can …
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Platinum group metal coordination complexes of ferrocenyl N-donor ligands and their potential application in catalysis and medicinal chemistry
In this project a series of multinuclear complexes were successfully prepared and characterised using an array of analytical techniques. The use of nitrogen-donor ligands, in particular pyridine and ferrocenyl derivatives thereof was examined. Two main approaches were taken in the preparation of …
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Chemical crystallography at the interface of physics, chemistry, and in engineering: structure determination of highly correlated extended solids, main group compounds, coordination complexes, and bioceramics
… extended solids, layered metal oxides, inorganic complexes, discrete organic molecules, and bioceramics. These projects range from modeling translational disorder with pseudo-hexagonal symmetry (Yb2Pd3Ga9), determining the influence of chemical doping on structure and physical properties (P-, Yb-, …
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