Results 51 to 60 of about 131,639 (350)

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Synthesis of Polycyclic Ring Systems Using Transition Metal Catalyzed Cyclizations of Diazo Alkynyl Ketones

Molecules, 2000
The rhodium(II)-catalyzed reaction of α-diazo ketones bearing tethered alkyne units represents a new and useful method for the construction of a variety of substituted cyclopentenones.
Albert Padwa
doaj   +1 more source

Discovery of Rubidium, Strontium, Molybdenum, and Rhodium Isotopes

, 2011
Currently, thirty-one rubidium, thirty-five strontium, thirty-five molybdenum and thirty-eight rhodium isotopes have been observed and the discovery of these isotopes is discussed here. For each isotope a brief synopsis of the first refereed publication,
A.M. Parker, Amaldi, Amarel, Amarel, Amarel, Arlt, Asghar, Aston, Aston, Aston, Aston, Aston, Aston, Aston, Aston, Aten, Aten, Aten, Aten, Atterling, Audi, Balog, Barber, Baró, Batchelder, Batchelder, Bernas, Bernas, Beydon, Bilge, Bilge, Blank, Blewett, Bohr, Borchert, Born, Bothe, Butement, Caretto, Castner, Chackett, Chaminade, Chaumont, Cheifetz, Crittenden, Crut, Curie, De boer, De vries, Diamond, Doron, DuBridge, Dubridge, D’auria, Eggen, Fettweis, Flegenheimer, Flegenheimer, Franz, Franz, Fritze, Fritze, Gelletly, Ginepro, Glasoe, Glendenin, Glendenin, Goriely, Gross, Grummitt, Grummitt, Grüter, Götte, Hagenauer, Hahn, Hahn, Hahn, Hahn, Hahn, Hardy, Hastings, Hayden, Helmholz, Hencheck, Herrmann, Heyn, Heyn, Hill, Hoff, Hollander, Hopkins, Hopkins, Janas, John, Karraker, Karras, Kienle, Kienle, Kienle, Knight, Kofoed-Hansen, Koglin, Korschinek, Kourtschatov, Ladenbauer-Bellis, Lederer, Lhersonneau, Liang, Lieber, Lindner, Lister, Lister, Livingood, Livingood, M. Thoennessen, Macias-Marques, Maurer, Minikawa, Mohar, Nishina, Nishina, Norris, Ohnishi, Pardo, Peacock, Penttilä, Peuser, Pontecorvo, Pontecorvo, Pool, Ravn, Reynolds, Rykaczewski, Sagane, Scoville, Seaborg, Seaborg, Seelmann-Eggebert, Seelmann-Eggebert, Seelmann-Eggebert, Snell, Stewart, Stewart, Strominger, Thoennessen, Tittel, Toeset, Tracy, Trautmann, Velandia, von Baeckmann, Wahl, Watson, Weiffenbach, Wiedenbeck, Wiles, Wohn, Wohn, Yennello, Zariov, Äystö, Äystö, Äystö   +162 more
core   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

Ion pair-dispersive liquid-liquid microextraction of trace amount of rhodium ion in water and road dust samples prior to flame atomic absorption spectrometry determination

Química Nova, 2011
A simple ion pair-dispersive liquid-liquid microextraction method was proposed for preconcentration trace amounts of rhodium. An ion association complex of RhCl4- and tetradecyldimetylbenzylamonium was extracted into cholorobenzene.
Daryoush Afzali, Ali Ghazizadeh, Hassan Salari   +2 more
doaj   +1 more source

Carbonylbis{6,6′-[(3,3′-di-tert-butyl-5,5′-dimethoxy-1,1′-biphenyl-2,2′-diyl)bis(oxy)]bis(dibenzo[d,f][1,3,2]-dioxaphosphepine)}hydridorhodium(I) toluene-d8 2.25-solvate

IUCrData, 2023
The crystal-structure determination of the title compound, [RhH(C46H44O8P2)2(CO)]·2.25C7D8, is reported. The bisphosphite ligand, C46H44O8P2, is well known as Biphephos.
Benedict N. Leidecker, Anke Spannenberg, Robert Franke, Armin Börner, Christoph Kubis   +4 more
doaj   +1 more source

A high-throughput ab initio review of platinum-group alloy systems [PDF]

, 2014
We report a comprehensive study of the binary systems of the platinum group metals with the transition metals, using high-throughput first-principles calculations.
Curtarolo, Stefano, Hart, Gus L. W., Levy, Ohad, Massalski, Thaddeus B.   +3 more
core   +3 more sources

A Positron Lifetime Study of Cooling and Natural Aging of Solutionized Aluminum Alloys

Advanced Engineering Materials, EarlyView.
The process during cooling of Al–Mg and Al–Mg–Si alloys from the solutionizing temperature down to 20 °C is interrupted. These states are analyzed with positron lifetime spectroscopy to trace the processes during cooling. In different temperature ranges, two stages of vacancy loss and solute clustering are identified.
Zi Yang, Mengjie Li, John Banhart
wiley   +1 more source

Tetrathiomolybdate Complexes of Rhodium(I) with Molybdenum–Rhodium Interactions [PDF]

Inorganic Chemistry, 2016
The synthesis and characterization of the tetrathiomolybdatorhodium(I) monoanionic complexes [L2Rh(μ-S)2MoS2](-) (L = CO (3), P(OPh)3 (4), P(O-o-Tol)3 (P(o-CH3C6H4)3; 5), P(OMe)3 (6), P(OEt)3 (7), P(O-i-Pr)3 (8); L2 = COD (1,5-cyclooctadiene; 2), cis-dppen (cis-Ph2PCH═CHPPh2; 9), dppe (Ph2PCH2CH2PPh2; 10), dppb (Ph2P(CH2)4PPh2; 11)) is presented.
Xamonaki N., Asimakopoulos A., Balafas A., Dasenaki M., Choinopoulos I., Coco S., Koinis S., Σημαντήρας, Eμμανουήλ, Simandiras, Emmanuel D.   +8 more
openaire   +4 more sources

Komplexchemie perhalogenierter Cyclopentadiene und Alkine, VII [PDF]

, 1990
Coordination Chemistry of Perhalogenated Cyclopentadienes and Alkynes, VII1). - Synthesis of Several Tetrachlorometalloles of Cobalt, Rhodium, and Iridium; Structure of a Iridacyclopentadiene Derivative The reaction of dichloroethyne with CpCo(PPh3)2 ...
Clarke, Collman, Collman, Fehlhammer, Maguc, Mague, Mague, O'Connnor, Otsuka, Ott, Pielichowsky, Schore, Sheldrick, Sünkel, Sünkel, Wakatsuki   +15 more
core   +2 more sources