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Publications associées (67)

Repulsion forces of superplasticizers on ground granulated blast furnace slag in alkaline media, from AFM measurements to rheological properties

Paul Bowen, Michael Stuer, Ulrich Aschauer

The electrostatic and steric repulsion induced by different superplasticizers on ground granulated blast furnace slag in alkaline media have been studied. The superplasticizers were sulfonated naphthalene, sulfonated melamine, vinyl copolymer, and polycarb ...

Castineira Libreria Tecnica / Consejo Superior de Investigaciones Cientificas - Instituto de Ciencias de la Construccion Eduardo Torroja2012

Synthesis of self-pillared zeolite nanosheets by repetitive branching

Kumar Varoon Agrawal, Xu Zhang

Hierarchical zeolites are a class of microporous catalysts and adsorbents that also contain mesopores, which allow for fast transport of bulky molecules and thereby enable improved performance in petrochemical and biomass processing. We used repetitive bra ...

2012

Ligand Discrimination in Myoglobin from Linear-Scaling DFT+U

Myoglobin modulates the binding of diatomic molecules to its heme group via hydrogen-bonding and steric interactions with neighboring residues, and is an important benchmark for computational studies of biomolecules. We have performed calculations on the h ...

2012

Bis(pyrazol-1-yl)methane as Non-Chromophoric Ancillary Ligand for Charged Bis-Cyclometalated Iridium(III) Complexes

Michael Graetzel, Mohammad Khaja Nazeeruddin, Rosario Scopelliti, Davide Di Censo, Sheng Meng, Il Jung

New charged cyclometalated iridium(III) complexes Ir(ppy)2(L) [ppy = 2-phenylpyridine; L = bis(pyrazol-1-yl)methane (for 1); L = bis(3,5-dimethylpyrazol-1-yl)methane (for 2)] were synthesized and their electrochemical and photophysical properties st ...

Wiley-Blackwell2012

Chiral Monodentate Trialkylphosphines Based on the Phospholane Architecture

Nicolai Cramer, Tanguy Jean Daniel Saget, Pavel Alexandrovich Donets

The development of efficient chiral monodentate phosphine ligands lags behind that of the bidentate congeners. This holds especially true for highly electron rich chiral phosphine analogues able to replace the ubiquitous tricyclohexylphosphine and tri-tert ...

Amer Chemical Soc2012

Assessment of Intra- and Intermolecular Effects by Computational NMR

Daniel Filipe Dos Santos Alves Jana

This thesis addresses advances in the field of computational Nuclear Magnetic Resonance (NMR) with two specific objectives: 1) developing an approach enabling the direct probing of intramolecular electronic effects on molecular properties; 2) assessing and ...

EPFL2012

Steric Effects in the Chemisorption of Vibrationally Excited Methane on Ni(100)

Rainer Beck, Régis Bisson, Bruce Yoder

Newly available, powerful infrared laser sources enable the preparation of intense molecular beams of quantum-state prepared and aligned molecules for gas/surface reaction dynamics experiments. We present a stereodynamics study of the chemisorption of vibr ...

2010

Metalation of 2-Heterosubstituted Naphthalenes at the 1- or 3-Position: Factors That May Determine the Regiochemistry

Upon metalation and subsequent electrophilic trapping, 2-fluoronaphthalene inevitably gives rise to regioisomeric mixtures in varying proportions, whereas 2-(trifluoromethyl) naphthalene undergoes deprotonation either at the 1- or the 3-position, depending ...

2010

Influence of water-soluble sulfonated phosphine ligands on ruthenium catalyzed generation of hydrogen from formic acid

Paul Joseph Dyson, Gabor Laurenczy, Céline Fellay, Weijia Gan

Hydrogen can be generated from formic acid in aq. phase homogeneous catalytic reactions using ruthenium catalysts with water-sol. phosphine ligands. A comparison of tri-, di-, and mono-sulfonato triphenylphosphine, disulfonato diphenyl-alkyl-phosphines (Ph ...

Taylor & Francis2010

Scanning Near-field Optical Microscopy-based Study of Local Dynamics of Receptor-Ligand Interactions at the Single Molecule Level

Giovanni Dietler, Mounir Driss Mensi, Serguei Sekatski, Kanat Dukenbayev

A scanning near-field optical microscope (SNOM)-based modification of the method to study the dynamics of single molecule receptor?ligand interactions exploiting the fluorescence imaging by total internal reflection fluorescence microscopy is introduced. T ...

2010

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