Publications de Corinne Daguenet

How to predict the physical properties of ionic liquids: a volume-based approach

The mol. vol. Vm (i.e., the sum of the ionic vols. Vion of the constituent ions) of an ionic liq. (IL) in combination with an anion-dependent empirical relationship is all one needs to predict phys. properties such as viscosity, cond., and d. of [N(CN)2]-, ...

Wiley-VCH Verlag GmbH2007

A Metallacage Encapsulating Chloride as a Probe for a Solvation Scale in Ionic Liquids

Corinne Daguenet, Paul Joseph Dyson

With the purpose of assessing the reactivity of chloride ions dissolved in ionic liquids (ILs), a relative scale for the solvation of chloride is given for a series of ILs based on the bis(trifluoromethane)sulfonimide ([Tf2N]) anion and differen ...

2007

The Dielectric Response of Room-Temperature Ionic Liquids: Effect of Cation Variation

Corinne Daguenet, Paul Joseph Dyson

In continuation of recent work on the dielec. response of imidazolium-based ionic liqs. (ILs) (J. Phys. Chem. B, 2006, 110, 12682), the authors report on the effect of cation variation on the frequency-dependent dielec. permittivity up to 20 GHz of ionic l ...

2007

Dielectric Response of Imidazolium-Based Room-Temperature Ionic Liquids

Corinne Daguenet, Paul Joseph Dyson

We have used microwave dielec. relaxation spectroscopy to study the picosecond dynamics of five low-viscosity, highly conductive room temp. ionic liqs. based on 1-alkyl-3-methylimidazolium cations paired with the bis((trifluoromethyl)sulfonyl)imide anion. ...

2006

Catalytic hydrogenation of alkenes under biphasic conditions : understanding solvent effects

Corinne Daguenet

Ruthenium(II)-arene diphosphine complexes are shown to be effective precursors for the catalytic hydrogenation of the C=C bond in an aqueous biphase using molecular hydrogen as the hydrogen source. A mechanistic study performed in water, utilizing high gas ...

EPFL2006

Why Are Ionic Liquids Liquid? A Simple Explanation Based on Lattice and Solvation Energies

Corinne Daguenet, Paul Joseph Dyson

We have developed a simple and quant. explanation for the relatively low melting temps. of ionic liqs. (ILs). The basic concept was to assess the Gibbs free energy of fusion (ΔfusG) for the process IL(s) -> IL(l), which relates to the m.p. ...

2006

Switching the Mechanism of Catalyst Activation by Ionic Liquids

Corinne Daguenet, Paul Joseph Dyson

In ionic liqs. (ILs), the activation of a ruthenium(II) catalyst precursor occurs via an unexpected mechanism, which is different from the activation mechanism that takes place in water. The effectiveness of a biphasic catalytic hydrogenation reaction usin ...

2006

Site-isolated porphyrin catalysts in imprinted polymers

Estelle Burri, Corinne Daguenet, Kay Severin

A meso-tetraaryl ruthenium porphyrin complex having four polymerizable vinylbenzoxy groups (2) has been synthesized by reaction of pyrrole with 4-(vinylbenzoxy)benzaldehyde and subsequent metalation with [Ru-3(CO)(12)]. The porphyrin complex was immobilize ...

2005