Publications associées à Cristal ionique

Pivotal Role of the Basic Character of Organic and Salt Catalysts in C-N Bond Forming Reactions of Amines with CO2

Organocatalysts promote a range of C-N bond forming reactions of amines with CO2. Herein, we review these reactions and attempt to identify the unifying features of the catalysts that allows them to promote a multitude of seemingly unrelated reactions. Ana ...

Wiley-VCH Verlag GmbH2020

Specific Ion Effects at the Interface of Nanometer-Sized Droplets in Water: Structure and Stability

Sylvie Roke, Halil Ibrahim Okur, Evangelia Zdrali

The interaction of ions with interfaces influences numerous processes in chemistry, physics, and biology, while different ion species behave differently at hydrophobic or hydrophilic interfaces. Despite its importance, ion specificity and its relation to s ...

2019

Lattice Energy as Emerging General Parameter Describing Ionic Organic Semiconducting Materials Properties

Donatas Gesevicius

Cyanine dyes represent a class of ionic functional materials used by a broad heterogeneous science community contain-ing biologists, chemists, physicists and materials scientists. Their diverse application opportunities are ranging from fluorescence marker ...

EPFL2018

Leaching from Palladium Nanoparticles in an Ionic Liquid Leads to the Formation of Ionic Monometallic Species

Paul Joseph Dyson

Molecular dynamics simulations and DFT calculations suggest that leaching of palladium species from Pd nanoparticles in ionic liquids does not involve "naked" Pd(0) atoms or neutral ArPdX species formed by oxidative addition of arylhalides. Instead, the io ...

Amer Chemical Soc2017

The Intricate Chemistry of Cobalt(II) Halides and Bis(diphenylphosphanyl)ethane

Rosario Scopelliti, Kay Severin, Heron Vrubel, Gregor Kiefer

Phosphane complexes of the putative formula [CoX2(dppe)] [X = Cl, Br, I; dppe = bis(diphenylphosphanyl)ethane] are frequently used catalyst precursors in cobalt-catalyzed reactions. Despite their widespread use, these complexes have not been structurally c ...

Wiley-Blackwell2013

Extraordinarily efficient conduction in a redox-active ionic liquid

Michael Graetzel, Shaik Mohammed Zakeeruddin, Jacques-Edouard Moser, Jan Cornelius Brauer, Guido Rothenberger, Verner Thorsmolle

Iodine added to iodide-based ionic liquids leads to extraordi- narily efficient charge transport, vastly exceeding that expect- ed for such viscous systems. Using terahertz time-domain spectroscopy, in conjunction with dc conductivity, diffusivity and visc ...

Wiley-Blackwell2011

Crystallisation of inorganic salts containing 18-crown-6 from ionic liquids

Paul Joseph Dyson, Rosario Scopelliti, Gabor Laurenczy, Zhaofu Fei, Ning Yan

Reaction of the zwitterionic imidazolium salt [(CH2COOH)(CH2COO)i.m.] with K2CO3 or BaO in the presence of 18-crown-6 affords the salts [(CH2COO)2i.m.][K(18-crown-6)] and [(CH2COO)2i.m.]2[Ba(18-crown-6)]. Recrystn. of these crown complexes from the ionic l ...

Elsevier2010

simple physical model for the simultaneous rationalisation of melting points and heat capacities of ionic liquids

Paul Joseph Dyson

The anal. of potential energy surfaces of ion pairs within the framework of an anharmonic oscillator model allows rationalization and prediction of m.ps. (Tmp) and heat capacities (Cp) of ionic liqs. (ILs) comprising di- and trialkylimidazolium or tetraalk ...

Royal Society of Chemistry2010

Tetraalkylammonium Salts of Weakly Coordinating Aluminates: Ionic Liquids, Materials for Electrochemical Applications and Useful Compounds for Anion Investigation

Michael Graetzel, Mingkui Wang, Ines Raabe

In this study, we investigated the tetraalkylammonium salts of the weakly coordinating fluorinated alkoxyaluminates pftb (Al(O(C(CF3)(3))(4)) hfip (Al(OC(H)-(CF3)(2))(4)) and hftb (Al(OC(CH3)(-) (CF3)(2))(4)) in order to obtai ...

2009

Exploring the potential of europium(III) luminescence for the detection of phase transitions in ionic liquid crystals

Jean-Claude Bünzli, Anne-Sophie Chauvin, Frédéric Gumy, Joël Kocher

The ionic liquid crystal [C12-mim]Cl has been doped with 5 mol% europium nitrate and the photophysical properties of both the ionic liquid and the trivalent europium ion have been monitored with respect to temperature in the range of 248 to +120 uC. The re ...

Royal Society of Chemistry2007