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Your search keyword '"Gorller-Walrand, Christiane"' showing total 9 results
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9 results on '"Gorller-Walrand, Christiane"'

1. Speciation of uranyl complexes in ionic liquids by optical spectroscopy

Author

Nockemann, Peter, Servaes, Kelly, Van Deun, Rik, Van Hecke, Kristof, Van Meervelt, Luc, Binnemans, Koen, and Gorller-Walrand, Christiane

Subjects
Atomic absorption spectroscopy -- Usage, Coordination compounds -- Research, Coordination compounds -- Chemical properties, Chemistry
Abstract

Uranyl complex dissolved in room-temperature ionic liquids has diagnostic absorption and emission spectra that has allowed the identification of the symmetry and geometry of the complex. The uranyl complexes are examined in imidazolium and pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids.

Published
2007

2. Lanthanide-containing liquid crystals and surfactants

Author

Binnemans, Koen and Gorller-Walrand, Christiane

Subjects
Chemical research -- Analysis, Liquid crystals -- Physiological aspects, Surface active agents -- Physiological aspects, Rare earth metals -- Physiological aspects, Chemistry
Abstract

The authors review the publications on liquid crystals and surfactants. The topics of interest include calamitic liquid crystals, layered compounds and magnetic anisotropy and magnetic alignment of liquid crystals.

Published
2002

3. Chemical solubilities revised with computer support

Author

De Roo, Saskja, Vermeire, Lea, and Gorller-Walrand, Christiane

Subjects
Solubility -- Information management, Mathematical software -- Usage, Chemistry, Education, Science and technology
Abstract

Mathematics, a mathematical program capable of supporting advanced numerical and symbolic computing and 2D-3D graphics, was used to compute exact and efficient chemical solubilities. Solubilities could be determined through a fast interactive program erasable after work sessions or a short package available for multiple use. Among the advantages provided by Mathematica were user friendliness, fast and exact calculation, efficiency and enhancement of students' computer literacy.

Published
1995

5. Species distribution and coordination of uranyl chloro complexes in acetonitrile

Author

Hennig, Christoph, Servaes, Kelly, Nockemann, Peter, Van Hecke, Kristof, Van Meervelt, Luc, Wouters, Johan, Fluyt, Linda, Gorller-Walrand, Christiane, and Van Deun, Rik

Subjects
Acetonitrile -- Chemical properties, Ultraviolet radiation -- Usage, Uranium -- Atomic properties, Uranium -- Chemical properties, X-ray crystallography -- Usage, Chemistry
Abstract

The complex formation of the uranyl ion with chloride ions in acetonitrile is examined by factor analysis of ultraviolet-visible absorption and U [L.sub.3] edge EXAFS (extended X-ray absorption fine structure) spectra. The U(VI) coordination of the solution species [U[O.sub.2][Cl.sub.2]([H.sub.2]O)[(MeCN).sub.2]] has changed during the crystallization of replacing one MeCN molecule with a bridging [[mu].sub.3].O atom in the tetramer.

Published
2008

6. Rare-earth complexes of ferrocene-containing ligands: Visible-light excitable luminescent materials

Author

Yao-Feng Yuan, Cardinaels, Thomas, Lunstroot, Kyra, Hecke, Kristof Van, Meervelt, Luc Van, Gorller-Walrand, Christiane, Binnemans, Koen, and Nockemann, Peter

Subjects
Hydrophobic effect -- Research, Luminescence -- Analysis, Neodymium -- Structure, Neodymium -- Chemical properties, Neodymium -- Optical properties, Rare earth metals -- Structure, Rare earth metals -- Chemical properties, Rare earth metals -- Optical properties, Chemistry
Abstract

The ferrocene-derivatives bis(ferrocenyl-ethynyl)-1,10-phenanthroline ([Fc.sub.2]phen) and ferrocenoyltrifluoroacetone (Hilta) is used to synthesize ferrocene-containing rate earth beta-diketonate complexes. It is found that the presence of the ferrocene groups makes the rare-earth complexes hydrophobic and well-soluble in apolar organic solvents.

Published
2007

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