20 research outputs found
Synthèse et réactivité vis à vis d'amines des complexes [Tp Me2,Cl Rh(CO)2] et [Bpm Me2 Rh(CO)L]+ (étude de leur activité catalytique dans les réactions d'hydroformylation et d'hydroaminométhylation des alcènes)
TOULOUSE3-BU Sciences (315552104) / SudocSudocFranceF
Ionic Liquids as a Medium for Enantioselective Catalysis
International audienc
Nouveaux ligands dihydroanthracène vers la formation de nanoparticules et de complexes de palladium (études de leur comportement catalytique dans différents milieux)
TOULOUSE3-BU Sciences (315552104) / SudocSudocFranceF
Supported ionic liquid phase catalysis on functionalized carbon nanotubes
Highly active rhodium catalysts have been prepared by immobilization of an ionic liquid film on carbon nanotubes functionalized with imidazolium-based ionic moieties
Английский для психологов = English for psychologists : пособие для студентов I курса фак. философии и соц. наук спец. 1-23 01 04 «Психология». В 3 ч. Ч. 1 / А. Ю. Долгачева, О. А. Фролова. – Минск : БГУ, 2007. – 151 с.
Цель пособия – обучение навыкам и умениям таких видов речевой деятельности, как чтение, письмо и говорение, овладение которыми необходимо
для успешной реализации иноязычного общения в определенных учебных ситуациях.
Пособие предназначено для студентов I курса факультета философии и
социальных наук специальности 1-23 01 04 «Психология» и может быть использовано на практических занятиях по английскому языку.
Цель пособия – обучение навыкам и умениям таких видов речевой деятельности, как чтение, письмо и говорение, овладение которыми необходимо
для успешной реализации иноязычного общения в определенных учебных ситуациях.
Пособие предназначено для студентов I курса факультета философии и
социальных наук специальности 1-23 01 04 «Психология» и может быть использовано на практических занятиях по английскому языку
Palladium nanoparticles immobilized in ionic liquid : an outstanding catalyst for the Suzuki C-C coupling
International audienc
(1S,8R,15S,19R)-17-Benzyl-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2(7),3,5,9(14),10,12-hexaene chloroform monosolvate
In the title compound, C25H23N·CHCl3, the dihydroanthracene unit is bent with a dihedral angle between the benzene rings of 57.82 (8)°. The N atom of the pyrrolidine heterocycle, which has an envelope conformation with the N atom as the flap, exhibits a pronounced pyramidalization [Σ(C—N—C) = 328.07°], indicating an accentuated N-donor character. In the crystal, this behaviour is evident by the C—H...N hydrogen bond involving a solvent molecule and the N atom. The absolute configuration at the C-atom fused positions of the pyrrolidine group were crystallographically confirmed to be S and R
Heteropolymetallic Complexes Linked to a 9,10-Dihydroanthracenyl Frame. Ruthenium as Active Spectator for Palladium Reactivity
New
monometallic Pd(II) (<b>3</b>, <b>4</b>) and heteropolymetallic
Pd(II)/Ru(II) complexes (<b>5</b>, <b>6</b>) linked to
an original 9,10-dihydroanthracenyl–pyrrolidine scaffold were
synthesized and fully characterized. For monometallic complexes, <i>exo-</i><b>3</b> and <i>endo</i>-<b>4</b> conformers were exclusively obtained from Pd(OAc)<sub>2</sub> and
[PdCl<sub>2</sub>(COD)], respectively. The formation of the sterically
hindered <i>endo</i><b>-4</b> was justified by the
positive noncovalent intramolecular Cl−π interaction,
observed by X-ray diffraction. The reaction of <i>endo</i><b>-4</b> with 1 and 2 equiv of [RuCp(NCMe)<sub>3</sub>]PF<sub>6</sub> led to complexes <b>5</b> and <b>6</b>, respectively.
It is worth noting that lower conversions in the Suzuki–Miyaura
coupling were found using <b>5</b> and <b>6</b> as catalysts,
in comparison to those with monometallic palladium complexes. This
behavior could be related to the higher stabilization of Pd(II) species
for the heteropolymetallic complexes, as proven by electrochemical
analyses
A new and specific mode of stabilization of metallic nanoparticles
International audienc