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Showing 1 to 14 of 14 for “"coordination complex"”.
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Calixarene and coordination complex hosts for anions.
… Ph.D research is mainly based on ‘calixarene and coordination complex hosts for anion’. The research is to make synthetic chloride ion channels for possible treatment of cystic fibrosis. Our approach is based on derivatives of larger calix[n]arenes. Calixarenes are chalice-shaped molecules that …
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A Study of Coordination-Complex Photophysics by Laser-Excited Luminescence
Made available in DSpace on 2014-12-10T23:01:50Z (GMT). No. of bitstreams: 1 7412236.pdf: 4991762 bytes, checksum: 45cd3ab11062839c569dc60fefe2fa67 (MD5) Previous issue date: 1973
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New Chemistry of Mercaptoazulenes and Low-Valent Complexes of Isocyanoarenes
Aryl mercaptans and their coordination complexes contribute to a number of diverse applications including pharmaceutical, surface science, and molecular electronics, and light emitting diodes. Recently the Barybin group has begun to explore the coordination chemistry of mercaptoazulenes. Prior to …
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Fading of carbonless copying paper
… did in fact retard the dye development. A coordination complex with a different ,tmax for 1absorptionwas detected with boron trifluoride and S-RB (2). The oxIdation of S-RB (2) on Fulacolor was shown to occur at two distinct sites: iron atoms in the aluininosilicate lattice and at aluminium …
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Elucidation of Battery Electrolyte Coordination Sphere Thermodynamics via Calorimetric and Potentiometric Titrations
… the electrolyte—specifically the cation’s first coordination sphere—is limited. In this thesis, the study of ion solvation and complexation techniques are brought into the context of battery electrolytes. Relevant data from literature is summarized and supplemented with enthalpy of solution …
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TRANSITION METAL CATALYZED CROSS-COUPLINGS OF ALKYL SULFONE ELECTROPHILES
… that the mechanism likely involves an η2-nickel coordination complex with the olefin, which facilitates oxidative addition. Following cross-coupling, the olefin could be cleaved to introduce new functionalities. Next, we developed a nickel-catalyzed Kumada cross-coupling of cyclic alkyl sulfones …
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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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Porous metal-organic frameworks for sorption of volatile organic compounds
… charge transfer, or π to π* transitions in coordination complex. Crystal structures and their stability, sorption properties and selectivity were characterized by single crystal X-ray diffraction, thermogravimetric analysis, differential scanning, hot stage microscopy, powder X-ray …
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Oxygen reduction electrocatalysis
… focuses on the precipitation of an insoluble complex of copper(II) with 3,5-diamino-1,2,4-triazole onto a carbon black support that leads to the formation of an efficient catalyst for the ORR referred to as CuDAT. The oxygen-reduction activity is reported over a wide pH range from 1 to 13 and …
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Ligand Design for Dual Property Single Molecule Magnets
… magnets, and secondly the preparation and coordination of a chiral mpmH ligand with selected 3d transition metal ions, working towards the discovery of chiral polynuclear clusters. In Project 1, the coordination chemistry of the TBC4 macrocycle together with Dy(III) and Tb(III) afforded two …
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Low-temperature protonation studies of an electron-poor osmium methyl complex, and molecular precursors for the construction of graphene nanostructues with atomically precise edge structures
… in refluxing ethanol gave the piano stool osmium complex (C5Me5)Os(dfmpm)Br, which was converted to (C5Me5)Os(dfmpm)Me in excellent yield by treatment with excess ZnMe2 in refluxing toluene. The analogous ethyl complex (C5Me5)Os(dfmpm)Et can also be prepared in a similar fashion, but with …
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Modeling Dark- and Light-Induced Crystal Structures and Single-Crystal Optical Absorption Spectra of Ruthenium-Based Complexes that Undergo SO2-Linkage Photoisomerization
A family of coordination complexes of the type [Ru(SO2)(NH3)4X]Y exhibit optical-switching capabilities in their single-crystal state. This striking effect is caused by photoisomerization of metastable photoinduced states, which are metastable if kept at suitably low temperatures. This illustrates …
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Ultrafast photophysics of transition metal coordination complexes studied with femtosecond extreme ultraviolet transient absorption spectroscopy
… = Fe3+, Ni2+, Mn3+, Co2+) and a heterobimetallic complex CoMnCl(py3tren) are studied using a homebuilt extreme ultraviolet (XUV) transient absorption apparatus. XUV photons are produced via high-harmonic generation, allowing M-edge XANES measurements to be performed as an in-lab technique. This …
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Development & characterization of bio-inspired earth-abundant metal systems and extreme ultraviolet spectroscopy of precious metal photocatalysts
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-08-01