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Technétium

Publications associées (53)

Asymmetric Rhodium(I)-Catalyzed C-C Activations with Zwitterionic Bis-phospholane Ligands

The development of unconventional ligand scaffolds is an important aspect to alter reaction pathways of transition-metal-catalyzed reactions. The nature of the counterion of cationic metal complexes plays an important role in the catalyst reactivity. We he ...

Amer Chemical Soc2014

The metastable HCl center dot 6H(2)O phase - IR spectroscopy, phase transitions and kinetic/thermodynamic properties in the range 170-205 K

Michel Rossi, Simone Chiesa

In this laboratory study a multidiagnostic experimental approach including Fourier transform infrared (FTIR) absorption of 1 to 2 mu m thick polycrystalline ice films, residual gas mass spectrometry (MS) and total pressure measurement were employed. Both a ...

Copernicus Gesellschaft Mbh2013

Heterogeneous Silica-Supported Ruthenium Phosphine Catalysts for Selective Formic Acid Decomposition

Paul Joseph Dyson, Gabor Laurenczy, Weijia Gan

The water-soluble ruthenium(II)–mTPPTS complex (mTPPTS= meta-trisulfonated triphenylphosphine) efficiently catalyzes the generation of hydrogen from formic acid in aqueous solution. This catalyst has been immobilized in a hydrophilic silica sup- port to fa ...

Wiley-VCH Verlag Berlin2013

X-ray Absorption Spectroscopy of Ground and Excited Rhenium–Carbonyl–Diimine Complexes: Evidence for a Two-Center Electron Transfer

Majed Chergui, Ursula Röthlisberger, Ivano Tavernelli, Thomas James Penfold, Van Thai Pham, Amal El Nahhas, Renske Marjan van der Veen, Frederico Alves Lima

Steady-state and picosecond time-resolved X-ray absorption spectroscopy is used to study the ground and lowest triplet states of ReX(CO)(3)(bpy), X = Etpy (n = 1), Cl, or Br (n = 0). We demonstrate that the transient spectra at both the Re L3- and Br ...

Amer Chemical Soc2013

Portable Amperometric Perchlorate Selective Sensors with Microhole Array-water/organic Gel Interfaces

Hubert Girault

A novel stick-shaped portable sensing device featuring a microhole array interface between the polyvinylchloride- 2-nitrophenyloctylether (PVC-NPOE) gel and water phase was developed for in-situ sensing of perchlorate ions in real water samples. Perchlorat ...

2013

Arene ruthenium complexes with phosphinoferrocene amino acid conjugates: Synthesis, characterization and cytotoxicity

Paul Joseph Dyson, Olivier Pierre Zava

A series of heterodinuclear p-cymene ruthenium ferrocene complexes, [(eta(6)-p-MeC6H4Pri)RuCl2(Ph(2)Pfc-CONHRCO2Me-kappa P)] (R = (S)-Me: 6, R = (S)-CHMe2: 7, R = (S)-CH2OMe: 8, R = (S)-CH2SMe: 9, R = (S)-CH2CH2CO2Me: 10) have been synthesized from p-cymen ...

Elsevier Science Sa2013

Effect of Crystallographic Phase (β vs. γ) and Surface Area on Gas Phase Nitroarene Hydrogenation Over Mo2N and Au/Mo2N

Lioubov Kiwi, Vincent Laporte, Fernando Cardenas Lizana, Daniel André Samuel Lamey

The catalytic action of Mo2N and Au/Mo2N has been assessed in the selective gas phase hydrogenation of p-chloronitrobenzene (p-CNB) to p-chloroaniline (p-CAN). The nitrides were synthesised via temperature programmed treatment of MoO3 in H-2 + N-2 and Au i ...

Springer US2012

Multi-configurational quantum chemical studies of the Tc2X8n- (X = Cl, Br; n=2, 3) anions. Crystallographic structure of octabromoditechnetate(3(-))

The [Cs(2 + x)][H3O(1 -x)]Tc2Br8 center dot 4.6H(2)O (x = 0.221) salt has been synthesized and characterized by single crystal XRD. Multi-configurational quantum chemical calculations on Tc2X8n- (X = Cl, Br; n = 2, 3) have been performed and indicate the p ...

2012

Evidence of anti-coking behavior of La 0.8Sr 0.2Cr 0.98Ru 0.02O 3 as potential anode material for Solid Oxide Fuel Cells directly fed under methane

Cyril Cayron

La 0.8Sr 0.2CrO 3 (LSC) based Ru catalysts are very active in methane steam reforming. Nevertheless, they can be easily poisoned under water-deficient conditions. Ru can be deposited as metallic ruthenium particles decorating the LSC grains or be inserted ...

2012

Classical and Quantum Critical Phenomena in the Dipolar Antiferromagnet LiErF4

Neda Nikseresht Ghanepour

The collective behavior of systems consisting of interacting dipoles is a subject of considerable studies. The anisotropic nature of such interactions opens an arena to explore fundamental questions in correlated electron physics, ranging from quantum enta ...

EPFL2012

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