CHE SIGNIFICA RUTHENIUM IN INGLESE
Rutenio
Il rutenio è un elemento chimico con simbolo Ru e numero atomico 44. È un raro metallo di transizione appartenente al gruppo platino della tavola periodica. Come gli altri metalli del gruppo platino, il rutenio è inerte alla maggior parte delle altre sostanze chimiche. Lo scienziato tedesco del Baltico Karl Ernst Claus ha scoperto l'elemento nel 1844 e lo ha chiamato dopo Ruthenia, la parola latina per Rus '. Il rutenio si presenta di solito come componente minore di oro di platino; La produzione annua è di circa 20 tonnellate. La maggior parte dei rutenio prodotta viene utilizzata per contatti elettrici resistenti all'usura e la produzione di resistenze a spessore. Una piccola applicazione del rutenio è il suo utilizzo in alcune leghe di platino.
definizione di ruthenium nel dizionario inglese
La definizione di rutenio nel dizionario è un elemento bianco fragile del gruppo del platino. Si presenta libero con altri metalli di platino nella pentlandite e altri minerali e viene utilizzato per indurire platino e palladio. Simbolo: Ru; numero atomico: 44; peso atomico: 101.07; valenza: 0-8; densità relativa: 12,41; punto di fusione: 2334 ° C; punto di ebollizione: 4150 ° C.
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10 LIBRI IN INGLESE ASSOCIATI CON «RUTHENIUM»
Scopri l'uso di
ruthenium nella seguente selezione bibliografica. Libri associati con
ruthenium e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
Ruthenium Oxidation Complexes: Their Uses as Homogenous ...
Ruthenium Oxidation Complexes explores ruthenium complexes, particularly those in higher oxidation states, which function as useful and selective organic oxidation catalysts.
2
Ruthenium Catalysts and Fine Chemistry
With contributions by numerous experts
Christian Bruneau, Pierre H. Dixneuf,
2004
3
Ruthenium in Organic Synthesis
In this comprehensive book, one of the leading experts, Shun-Ichi Murahashi, presents all the important facets of modern synthetic chemistry using Ruthenium, ranging from hydrogenation to metathesis.
Shun-Ichi Murahashi,
2006
4
New Classes of Bridging and Chelating Ligand Motifs ...
The strongest known pi-acceptor "pincer type" ligands, 1,3-C6 H4(CH2P(Rf)2)2 Rf = CF3, C2F5), have been prepared, and platinum, iridium, and ruthenium coordination chemistry studies have been carried out for the former ligand, P3CFCPH .
5
Understanding Hidden Order in Uranium
Ruthenium Silicide
The heavy fermion superconductor URu2Si2 has held the attention of physicists for the last two decades due to the presence of a "hidden order" phase below 17.5 K. It is the goal of the present work to solve the puzzle of hidden order in ...
6
Palladium and
Ruthenium-catalyzed Atom Economic ...
The synthetic utilities of these transformations have been demonstrated in the efforts towards the syntheses of (+)-gliocladin C, diazonamide A, and alkaloid GB 13.
Jia Xie, Stanford University. Dept. of Chemistry,
2008
7
Palladium- and
Ruthenium-catalyzed Decarboxylative ...
It has been since shown that a [Cp*RuCl]4/bipyridyl catalyst effectively induces a regioselective tandem Michael addition-allylation reaction. This protocol works well with a variety of allyl beta-ketoesters and Michael acceptors.
8
Manipulation of the Ligand Sphere of
Ruthenium Metathesis ...
The Grubbs first- and second-generation catalysts were used as the building blocks toward organometallic molecular wires. Two main strategies were employed to modify the catalysts: olefin metathesis and ancillary ligand exchange.
Sarah L. Bolton, Syracuse University. Graduate School,
2008
9
Ruthenium: Properties, Production and Applications
This book presents current research from across the globe in the study of ruthenium across a broad spectrum of topics.
10
Growth and Characterization of CVD
Ruthenium and Amorphous ...
Ruthenium metal has been considered for a number of microelectronics
applications, including use as a directly plateable copper diffusion barrier in
future ultra- large scale integrated circuit (ULSI) processing [1]. Due to the
continuing trend of ...
10 NOTIZIE DOVE SI INCLUDE IL TERMINE «RUTHENIUM»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
ruthenium nel contesto delle seguenti notizie.
Jewelers back to black with rhodium, ruthenium
He has used black ruthenium to create jet black crow's feathers for a 2009 line, and in special editions of floral-themed lines to give a "contrast to the femininity of ... «Reuters, mag 15»
Jewellers back to black with rhodium, ruthenium
He has used black ruthenium to create jet black crow's feathers for a 2009 line, and in special editions of floral-themed lines to give a "contrast to the femininity of ... «Reuters, mag 15»
Ruthenium slips further, prices approaching uneconomic levels
Ruthenium prices moved lower this week on lower producer offers and lack of industrial demand, raising the possibility of a stoppage in output until prices revive ... «Platts, apr 15»
Catalyst redefines rate limitations in ammonia production
Both iron and ruthenium are well known catalysts for the break of the nitrogen bond. However ruthenium-based catalysts are highly prone to hydrogen poisoning ... «Phys.Org, mar 15»
Nettles could be key to cancer treatment
University of Warwick chemists developed a novel method for binding Sodium Formate - approved food additive E-237 - with a compound of the metal ruthenium ... «Telegraph.co.uk, mar 15»
How young minds may create a new energy revolution
But the devices built so far require rare and expensive elements such as platinum and ruthenium. Professor Harry Gray, who set up Harry's Solar Army to try and ... «BBC News, nov 14»
Molecular Devices Partners with Roche to Develop Custom …
Nano-TRF® is a robust, Ruthenium-based time-resolved assay used in high-throughput screening for drug discovery. Ruthenium-based dyes combine the ... «PR Newswire, ott 14»
Záhada Homérovy Chiméry, hořící skála a ruthenium
Plameny hořící skály Yanartaş v antické Lýkii, které inspirovaly legendu o Chiméře, nejspíš pohání metan vytvářený katalytickým působením ruthenia z místních ... «Osel.cz, ott 14»
Metal solves mystery of flames that inspired Homer
Working with Artur Ionescu of the Babes-Bolyai University in Cluj-Napoca, Romania, he has shown that ruthenium, a rare metal found in the igneous rocks ... «New Scientist, ott 14»
Mapping the behavior of charges in correlated spin-orbit coupled …
Scanning tunneling microscopy revealed ruthenium effectively created features within the compound that resembled minute metallic puddles, said Wilson, one ... «Phys.Org, mar 14»