Author
R. Hubin
Bio: R. Hubin is an academic researcher from University of Liège. The author has contributed to research in topics: Thermal decomposition & Oxalate. The author has an hindex of 6, co-authored 11 publications receiving 74 citations.
Papers
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TL;DR: The thermal decomposition of the Ba, Sr, and Mg oxalates has been studied using a combination of techniques, among which thermal analysis, mass spectrometry of the effluent gases, and ESR of the adsorbed residues as mentioned in this paper.
18 citations
TL;DR: The formation of Cu (C 5 H 5 N) 5 2+ species was shown by EPR to occur in the homogeneous phase oxidative coupling reaction of phenylacetylene catalyzed by the Cu(C 5H 5N) 4 (NO 3 ) 2 complex.
12 citations
TL;DR: In this paper, the complementary use of thermogravimetric analysis and electron paramagnetic resonance spectroscopy enables the identification on interrelated and successive steps in the vacuum decomposition of ZnC2O4 · 2H2O.
11 citations
TL;DR: In this article, the thermal decomposition of the compounds ZnCrO4, ZnO4·3.5 Zn(OH)2·H2O and CuCrO 4 have been investigated using a combination of various techniques: TG, EPR, IR and X-ray.
Abstract: The thermal decompositions in vacuum of the compounds ZnCrO4, ZnCrO4·3.5 Zn(OH)2·H2O and CuCrO4 have been investigated using a combination of various techniques: TG, EPR, IR and X-ray.
7 citations
TL;DR: In this article, the thermolysis of mixtures of chromates and oxalates of Ba and Sr has been studied using a combination of techniques, among which thermal analysis and EPR.
6 citations
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TL;DR: This work has reported several recently reported Cu-catalyzed C-H oxidation reactions that feature substrates that are electron-deficient or appear unlikely to undergo single-electron transfer to copper(II), and evidence has been obtained for the involvement of organocopper(III) intermediates in the reaction mechanism.
Abstract: The selective oxidation of C-H bonds and the use of O(2) as a stoichiometric oxidant represent two prominent challenges in organic chemistry. Copper(II) is a versatile oxidant, capable of promoting a wide range of oxidative coupling reactions initiated by single-electron transfer (SET) from electron-rich organic molecules. Many of these reactions can be rendered catalytic in Cu by employing molecular oxygen as a stoichiometric oxidant to regenerate the active copper(II) catalyst. Meanwhile, numerous other recently reported Cu-catalyzed C-H oxidation reactions feature substrates that are electron-deficient or appear unlikely to undergo single-electron transfer to copper(II). In some of these cases, evidence has been obtained for the involvement of organocopper(III) intermediates in the reaction mechanism. Organometallic C-H oxidation reactions of this type represent important new opportunities for the field of Cu-catalyzed aerobic oxidations.
1,129 citations
TL;DR: In this article, a set of new Cu-katalysierte C-H-Oxidationen with elektronenarmen substraten was given, of which one of them was a Kupfer(II)-Katalysator.
Abstract: Die selektive Oxidation von C-H-Bindungen und der Einsatz von O2 als stochiometrisches Oxidationsmittel stellen zwei wesentliche Herausforderungen in der organischen Chemie dar. Kupfer(II) ist ein vielseitiges Oxidationsmittel fur verschiedene oxidative Kupplungen, die durch Einelektronen-Transfer (SET) von elektronenreichen organischen Molekulen ausgelost werden. Viele dieser Reaktionen konnen mit Kupfer katalytisch durchgefuhrt werden, wenn molekularer Sauerstoff als Oxidationsmittel eingesetzt wird, um den aktiven Kupfer(II)-Katalysator zu regenerieren. Daneben wurden auch zahlreiche neue Cu-katalysierte C-H-Oxidationen mit elektronenarmen Substraten beschrieben, von denen ein SET zum Kupfer(II) unwahrscheinlich scheint. In einigen dieser Falle konnte die Beteiligung von Organokupfer(III)-Intermediaten im Reaktionsmechanismus nachgewiesen werden. Metallorganische C-H-Oxidationen dieser Art eroffnen neue bedeutende Moglichkeiten fur das Gebiet der Cu-katalysierten aeroben Oxidationen.
247 citations
245 citations
TL;DR: In this article, the thermal decomposition and stability of oxalates are reviewed from the viewpoint of their characteristic features rather than by a complete coverage of the existing literature, which is found to often be repetitive in nature.
220 citations
TL;DR: In this article, the authors applied X-ray photoelectron spectroscopy (XPS) and diffraction to the study of silica-supported CrO3 in the concentration range 1 to 9 wt% Cr.
103 citations