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Relevant bibliographies by topics / Transition metal compounds Molybdenum. Rhodium. Ruthenium

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Journal articles
Dissertations / Theses

Academic literature on the topic 'Transition metal compounds Molybdenum. Rhodium. Ruthenium'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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Journal articles on the topic "Transition metal compounds Molybdenum. Rhodium. Ruthenium"

1

González-Belman, Oscar, Artur Brotons-Rufes, Michele Tomasini, et al. "Towards Dual-Metal Catalyzed Hydroalkoxylation of Alkynes." Catalysts 11, no. 6 (2021): 704. http://dx.doi.org/10.3390/catal11060704.

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Poly (vinyl ethers) are compounds with great value in the coating industry due to exhibiting properties such as high viscosity, soft adhesiveness, resistance to saponification and solubility in water and organic solvents. However, the main challenge in this field is the synthesis of vinyl ether monomers that can be synthetized by methodologies such as vinyl transfer, reduction of vinyl phosphate ether, isomerization, hydrogenation of acetylenic ethers, elimination, addition of alcohols to alkyne species etc. Nevertheless, the most successful strategy to access to vinyl ether derivatives is the

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2

Hočevar, Brigita, Miha Grilc, and Blaž Likozar. "Aqueous Dehydration, Hydrogenation and Hydrodeoxygenation Reactions of Bio-Based Mucic Acid over Ni, NiMo, Pt, Rh, and Ru on Neutral or Acidic Catalyst Supports." Catalysts 9, no. 3 (2019): 286. http://dx.doi.org/10.3390/catal9030286.

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Hydrotreatment of mucic acid (also known as galactaric acid, an glucaric acid enantiomer), one of the most promising bio-based platform chemicals, was systematically investigated in aqueous media over alumina, silica, or carbon-supported transition (nickel and nickel-molybdenum) or noble (platinum, ruthenium and rhodium) metals. Mucic acid was only converted into mucic-1,4-lactone under non-catalytic reaction conditions in N2 atmosphere, while the 5 MPa gaseous H2 addition triggers hydrogenation in the bulk phase, resulting in formation of galacturonic and galactonic acid. However, dehydroxyla

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3

Cotton, F. Albert, and Xuejun Feng. "Density Functional Theory Study of Transition-Metal Compounds Containing Metal−Metal Bonds. 2. Molecular Structures and Vibrational Spectra of Dinuclear Tetracarboxylate Compounds of Molybdenum and Rhodium." Journal of the American Chemical Society 120, no. 14 (1998): 3387–97. http://dx.doi.org/10.1021/ja9738236.

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4

Zykova, A. "Synthesis and Structure of Aryl Phosphorus Compounds." Bulletin of the South Ural State University series "Chemistry" 12, no. 4 (2020): 5–50. http://dx.doi.org/10.14529/chem200401.

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Based on an analysis of the literature published from the late 20th century to the beginning of the 21st century, methods for the synthesis of some complex tetraorganylphosphonium salts are systematized and described, along with the features of the chemical transformations of pentaphenylphosphorus, which was first obtained in 1953. The tetraorganylphosphonium salts were known much earlier, however, the features of the synthesis of transition metal complexes, which are usually obtained from tetraorganylphosphorus halides and metal halides, have not been sufficiently studied. The present review

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Khalimon, Andrey, Kristina Gudun, and Davit Hayrapetyan. "Base Metal Catalysts for Deoxygenative Reduction of Amides to Amines." Catalysts 9, no. 6 (2019): 490. http://dx.doi.org/10.3390/catal9060490.

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The development of efficient methodologies for production of amines attracts significant attention from synthetic chemists, because amines serve as essential building blocks in the synthesis of many pharmaceuticals, natural products, and agrochemicals. In this regard, deoxygenative reduction of amides to amines by means of transition-metal-catalyzed hydrogenation, hydrosilylation, and hydroboration reactions represents an attractive alternative to conventional wasteful techniques based on stoichiometric reductions of the corresponding amides and imines, and reductive amination of aldehydes wit

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6

Ryabov, Alexander D. "The Exchange of Cyclometalated Ligands." Molecules 26, no. 1 (2021): 210. http://dx.doi.org/10.3390/molecules26010210.

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Reactions of cyclometalated compounds are numerous. This account is focused on one of such reactions, the exchange of cyclometalated ligands, a reaction between a cyclometalated compound and an incoming ligand that replaces a previously cyclometalated ligand to form a new metalacycle: + H-C*~Z ⇄ + H-C~Y. Originally discovered for PdII complexes with Y/Z = N, P, S, the exchange appeared to be a mechanistically challenging, simple, and convenient routine for the synthesis of cyclopalladated complexes. Over four decades it was expanded to cyclometalated derivatives of platinum, ruthenium, mangane

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7

Fokina, Z. A. "35Cl and 79Br NQR Spectra and the Secondary Bonding of Chalcogen Halide Complexes." Zeitschrift für Naturforschung A 55, no. 1-2 (2000): 160–66. http://dx.doi.org/10.1515/zna-2000-1-228.

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The 35Cl and 79Br NQR spectra of chalcogen halide complexes of aluminium, gallium, titanium, zirconium, hafnium, niobium, tantalum, molybdenum, tungsten, rhenium, iron, ruthenium, osmium, iridium, rhodium, platinum, palladium and gold are discussed. Three structure types of these complexes have been distinguished by X-ray structure analysis: type I with AX2 ligand and [MXn„Am] coordination polyhedron; type II with AX3 ligand and [MXn+m] coordination polyhedron; type III, dimeric complexes with M-X-M bridge (where X = Cl, Br and A = S, Se, Te). The formation of secondary M-X-A or M-X-M bonds is

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8

Kaim, Wolfgang, Natasa Doslik, Stephanie Frantz, et al. "Azo compounds as electron acceptor or radical ligands in transition metal species: spectroelectrochemistry and high-field EPR studies of ruthenium, rhodium and copper complexes of 2,2′-azobis(5-chloropyrimidine)." Journal of Molecular Structure 656, no. 1-3 (2003): 183–94. http://dx.doi.org/10.1016/s0022-2860(03)00339-9.

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9

Sellmann, Dieter, Olaf Käppler, Falk Knoch та Matthias Moll. "Übergangsmetallkomplexe mit Schwefelliganden, XLIX Außergewöhnliche Säure-Basenreaktionen an niedervalenten Ru-Nitrosyl-Komplexen mit dem Thiolat-amin-Liganden ′S2Ν2Ηχ'2- (χ = 1, 2) und Mo-Komplexe mit den Liganden′S2N2H2′2- und ′buS2N2H2′ 2-, Synthese, Struktur und Reaktionen / Transition Metal Complexes with Sulfur Ligands, XLIX Unusual Acid Base Reactions of Low Valence Ruthenium Nitrosyl Complexes with the Thiolate-amine Ligands ′S2Ν2ΗΧ'2- (χ = 1, 2) and Molybdenum Complexes with the Ligands ′S2N2H2′ 2- and ′buS2N2H2′ 2-, Syntheses, Structure and Reactions". Zeitschrift für Naturforschung B 45, № 6 (1990): 803–16. http://dx.doi.org/10.1515/znb-1990-0612.

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In order to find complexes suited as model compounds for oxidoreductases catalyzing reactions of the biological nitrogen cycle, Ru- and Mo-nitrosyl complexes with the ′S2N2H2'2- and ′buS2N2H2′ 2--** ligand were synthesized. The reaction of [Ru(NO)(PPh3)2Cl3] with Li2-'S2N2H2' yields the binuclear [Ru(NO)(′S2N2H′)]2 (1) and the mononuclear [Ru(NO)(PPh3)(′S2N2H2′ )]Cl (2). Formation of 1 is explained by HCl and subsequent PPh3 elimination from 2; the coordinatively unsaturated [Ru(NO)(′S2N2H′)] dimerize to give 1. 1 is also obtained a) when [Ru(NO)2(PPh3)2] is reacted with Li2-'S2N2H2′ , b) when

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10

Ratovelomanana-Vidal, Virginie, Pascal Matton, Steve Huvelle, Mansour Haddad, and Phannarath Phansavath. "Recent Progress in Metal-Catalyzed [2+2+2] Cycloaddition Reactions." Synthesis, September 27, 2021. http://dx.doi.org/10.1055/s-0040-1719831.

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AbstractMetal-catalyzed [2+2+2] cycloaddition is a powerful tool that allows rapid construction of functionalized 6-membered carbo- and heterocycles in a single step through an atom-economical process with high functional group tolerance. The reaction is usually regio- and chemoselective although selectivity issues can still be challenging for intermolecular reactions involving the cross-[2+2+2] cycloaddition of two or three different alkynes and various strategies have been developed to attain high selectivities. Furthermore, enantioselective [2+2+2] cycloaddition is an efficient means to cre

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Dissertations / Theses on the topic "Transition metal compounds Molybdenum. Rhodium. Ruthenium"

1

Mellows, Heather. "Synthesis and properties of two fold symmetric ruthenium and rhodium dihydrogen-hydride complexes /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/8598.

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2

Buitrago, Elina. "Transition metal-catalyzed reduction of carbonyl compounds : Fe, Ru and Rh complexes as powerful hydride mediators." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-75795.

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A detailed mechanistic investigation of the previously reported ruthenium pseudo-dipeptide-catalyzed asymmetric transfer hydrogenation (ATH) of aromatic ketones was performed. It was found that the addition of alkali metals has a large influence on both the reaction rate and the selectivity, and that the rate of the reaction was substantially increased when THF was used as a co-solvent. A novel bimetallic mechanism for the ruthenium pseudo-dipeptide-catalyzed asymmetric reduction of prochiral ketones was proposed. There is a demand for a larger substrate scope in the ATH reaction, and heteroar

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3

Shao, Li-Qin. "Propriétés magnétiques et supraconductrices de borures de terres rares et de métaux de transition : TR(Rh(1-x)Ru(x))4B(4-y)." Grenoble 1, 1987. http://www.theses.fr/1987GRE10031.

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Discussion des problemes souleves par la coexistence du magnetisme et de la supraconductivite. Etude du compose errh::(4)b::(4): temperature tricritique, cycles d'hysteresis, transition vers l'etat normal. Mise en evidence d'une nouvelle phase induite par le champ magnetique. Etude du compose du titre, avec tr=y, cu, er. Mise en evidence de la supraconductivite pour x=0,4. Effets de la concentration sur les proprietes physiques (chaleur massique, hysteresis magnetique, etc. . . ). Les resultats mettent en evidence l'importance des electrons itinerants

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